We already know that NFL commissioner Roger Goodell will call the name of Michigan offensive tackle Jake Long as the Miami Dolphins’ first overall selection when the draft starts at Radio City Music Hall on Saturday. But who will the other 30 teams pick (remember, the Patriots forfeited a first-round selection)? And who should they pick? Below we offer two mock drafts — one with predictions of what each team is likely to do, and one with suggestions of what each team should do.

2. St. Louis

Will draft: Glenn Dorsey, defensive tackle, LSU

Should draft: Vernon Gholston, defensive end, Ohio State

The Rams were a mess last year, and they could stand to upgrade almost everywhere, but they seem to have decided that they’ll add a defensive lineman. During most of the 2007 college football season, Dorsey was considered the best prospect in the country. When questions about a knee sprain and a stress fracture surfaced at the scouting combine, some thought his draft stock was dropping; but now it appears that doctors have given Dorsey a clean bill of health, and he is expected to go to the Rams. Gholston, however, is a tremendous athlete who would be a better choice.

3. Atlanta

Will draft: Matt Ryan, quarterback, Boston College

Should draft: Chris Long, defensive end, Virginia

After the disaster that was the Falcons’ first season without Michael Vick, they need a quarterback and will probably choose Ryan despite concerns about his accuracy. Chris Long is an outstanding athlete with a Hall of Fame pedigree as the son of Raiders Hall of Famer Howie Long, and he would be a better choice.

4. Oakland

Will draft: Chris Long, defensive end, Virginia

Should draft: Darren McFadden, running back, Arkansas

Raiders owner Al Davis loves players who create a buzz and make big plays, and McFadden, who was a home-run threat every time he touched the ball at Arkansas and ran a blazing 40-yard dash, would seem to be the perfect fit. But the prediction here is that if Long is available, he’ll be the second in his family to wear silver and black.

5. Kansas City

Will draft: Vernon Gholston, defensive end, Ohio State

Should draft: Ryan Clady, offensive tackle, Boise State

Quarterback is a possibility, but Brodie Croyle should get a chance to prove himself behind an offensive line that doesn’t have him running for his life. The Chiefs could use a defensive end after trading Jared Allen, but offensive line is their biggest need.

6. Jets

Will draft: Darren McFadden, running back, Arkansas

Should draft: Glenn Dorsey, defensive tackle, LSU

Nothing could create a bigger stir at Radio City than the Jets adding McFadden, who was the most impressive running back on the field last year and at the scouting combine in February. Dorsey would be a fine consolation prize if the Raiders draft McFadden — some analysts doubt that Dorsey can play in coach Eric Mangini’s 3-4 defense, but Dorsey is capable of adding bulk and playing nose tackle or shedding weight and playing end.

7. New England

Will draft: Sedrick Ellis, defensive tackle, USC

Should draft: Keith Rivers, linebacker, USC

The rich will get richer thanks to this pick, which the Patriots acquired a year ago in a trade with San Francisco. Either of the top USC players could start as rookies.

8. Baltimore

Will draft: Ryan Clady, offensive tackle, Boise StateShould draft: Matt Ryan, quarterback, Boston College

Even before Steve McNair’s retirement, the Ravens were considered likely to take a quarterback. But now that McNair is gone, there’s no way they’ll pass on Ryan if he’s available. Unfortunately for Baltimore, Ryan likely won’t be available, so instead of choosing the heir apparent to McNair, they’ll choose the heir apparent to left tackle Jonathan Ogden.

9. Cincinnati

Will draft: Keith Rivers, linebacker, USC

Should draft: Aqib Talib, cornerback, Kansas

Wide receiver is a position of need with Chris Henry released and Chad Johnson and T.J. Houshmandzadeh unhappy. But there’s not a wide receiver in this draft worthy of being a top-10 pick. A bigger need is a player to bolster the pass defense, which was terrible last season. Talib is just that player — a talented ballhawk who is one of the best athletes in the draft and will be an excellent special teams player in addition to playing cornerback.

10. New Orleans

Will draft: Leodis McKelvin, cornerback, Troy

Should draft: Sedrick Ellis, defensive tackle, USC

The Saints are considering trading up to take one of the top defensive players, but they’d be better off staying where they are. They’d be delighted to have Ellis fall this far, but McKelvin would also improve the defense immediately.

11. Buffalo

Will draft: Devin Thomas, wide receiver, Michigan State

Should draft: Dominique Rodgers-Cromartie, cornerback, Tennessee State

The Bills need playmakers on offense, but there might not be one here who fits well in their offensive scheme. Rodgers-Cromartie may have improved his draft stock in the last four months more than any other player. He ran a 4.33-second 40-yard dash at the combine and was the best defensive player on the field in the Senior Bowl.

12. Denver

Will draft: Branden Albert, guard, Virginia

Should draft: Rashard Mendenhall, running back, Illinois

Broncos coach Mike Shanahan has total control after the firing of general manager Ted Sundquist, and he needs an impact player. Albert is the best guard in the draft, and some teams think he should move to tackle, but Mendenhall would make a greater impact as a rookie.

13. Carolina

Will draft: Rashard Mendenhall, running back, Illinois

Should draft: Branden Albert, guard, Virginia

The Panthers would consider trading up to draft Ryan. If they can’t do that, they’ll focus on making life easier for the quarterback they have, Jake Delhomme, by upgrading the offensive line or the running game.

14. Chicago

Will draft: Jonathan Stewart, running back, Oregon

Should draft: Derrick Harvey, defensive end, Florida

It’s hard to believe this team was in the Super Bowl just 15 months ago, because the Bears’ roster has holes everywhere. They’re likely to draft an offensive playmaker such as Stewart, but Harvey is the best player left on this board.

15. Detroit

Will draft: Derrick Harvey, defensive end, Florida

Should draft: Jeff Otah, offensive tackle, Pittsburgh

Team president Matt Millen has made far too many draft-day mistakes with flashy players, and he needs to add some talent in the trenches. Either Harvey, who terrorized college passers, or Otah, who outplayed Chris Long when Pittsburgh took on Virginia, would be a good pick.

16. Arizona

Will draft: Dominique Rodgers-Cromartie, cornerback, Tennessee State

Should draft: Leodis McKelvin, cornerback, Troy

Every year the Cardinals look like they’re on the verge of playoff contention, and every year they fall short. Adding a first-round cornerback who would enter the starting lineup as a rookie might finally make this the year.

17. Kansas City

Will draft: Jeff Otah, offensive tackle, Pittsburgh

Should draft: Chris Williams, offensive tackle, Vanderbilt

The Chiefs acquired this pick from the Vikings (plus two picks in the third round) by trading Allen, so they might look for a defensive end to replace him. But reshaping their offensive line should be the Chiefs’ focus with both of their first-round picks.

18. Houston

Will draft: Felix Jones, running back, Arkansas

Should draft: Jonathan Stewart, running back, Oregon

Coming off a season in which Ron Dayne was their leading rusher, the Texans need to improve the ground game. If any one of the top four backs is still available, Houston will take him.

19. Philadelphia

Will draft: Fred Davis, tight end, USC

Should draft: DeSean Jackson, wide receiver, California

Eagles quarterback Donovan McNabb has lobbied for an offensive playmaker, and either Davis or Jackson would qualify. Davis is a more polished route runner, but Jackson would be a better choice because he’s also a threat as a punt returner.

20. Tampa Bay

Will draft: Mike Jenkins, cornerback, South Florida

Should draft: Kentwan Balmer, defensive end, North Carolina

Cornerback is the Buccaneers’ biggest need, and they’d be thrilled to add Jenkins, who played his college games in Tampa’s Raymond James Stadium. Balmer wouldn’t fill as dire a need but is an athlete with the potential to be a star.

21. Washington

Will draft: Phillip Merling, defensive end, Clemson

Should draft: Mike Jenkins, cornerback, South Florida

The Redskins would prefer to trade their first-round pick for a veteran wide receiver such as Chad Johnson or Anquan Boldin, but absent such a trade, they’ll upgrade the defense.

22. Dallas

Will draft: Jamaal Charles, running back, Texas

Should draft: Jonathan Stewart, running back, Oregon

Cowboys owner Jerry Jones would love to trade up to draft McFadden, but he’ll be satisfied to stay where he is and draft another running back, even if Charles is a reach this high.

23. Pittsburgh

Will draft: Chris Williams, offensive tackle, Vanderbilt

Should draft: Gosder Cherilus, offensive tackle, Boston College

Ben Roethlisberger was sacked a career-high 47 times last year, so the Steelers must improve their pass blocking. The best offensive lineman available will be their pick.

24. Tennessee

Will draft: Kentwan Balmer, defensive end, North Carolina

Should draft: Phillip Merling, defensive end, Clemson

Tennessee already has Pro Bowl defensive end Kyle Vanden Bosch and Pro Bowl defensive tackle Albert Haynesworth, and adding a rookie pass rusher would give the Titans the NFL’s best defensive line.

25. Seattle

Will draft: Aqib Talib, cornerback, Kansas

Should draft: Tyrell Johnson, safety, Arkansas State

Seattle will look to upgrade the secondary, and Talib would be a great pick. If he’s not available, Johnson is a solid choice: He’s a smart, athletic player who had big games the few times Arkansas State played high-quality opponents, including a very impressive showing against Texas.

26. Jacksonville

Will draft: Jerod Mayo, linebacker, Tennessee

Should draft: Calais Campbell, defensive end, Miami

The Jaguars need to get better on defense if they’re ever going to pass the Colts in the AFC South. Drafting either Mayo or Campbell would be a step in the right direction.

27. San Diego

Will draft: Gosder Cherilus, offensive tackle, Boston College

Should draft: Limas Sweed, wide receiver, Texas

A run-blocking offensive tackle to help LaDainian Tomlinson would be nice, but a dependable wide receiver to help Philip Rivers would be even better.

28. Dallas

Will draft: DeSean Jackson, wide receiver, California

Should draft: Justin King, cornerback, Penn State

The Cowboys need to add a cornerback, either with one of their first-round picks or by convincing NFL commissioner Roger Goodell to reinstate the suspended Pacman Jones. But if Jackson is still on the board, the Cowboys won’t be able to resist adding another big-play threat on offense.

29. San Francisco

Will draft: Dan Connor, linebacker, Penn State

Should draft: Brian Brohm, quarterback, Louisville

The 49ers aren’t ready to give up on quarterback Alex Smith, the first pick in the 2005 draft, but they should be. They’ll probably draft defense, but Brohm would be a better choice.

30. Green Bay

Will draft: James Hardy, wide receiver, Indiana

Should draft: Dustin Keller, tight end, Purdue

Aaron Rodgers has big shoes to fill as the heir apparent to Brett Favre, and a big target such as Hardy or Keller would help.

31. Giants

Will draft: Tyrell Johnson, safety, Arkansas State

Should draft: Kenny Phillips, safety, Miami

The defending champs have the luxury of entering the draft without any glaring needs. General manager Jerry Reese put together a great draft last year, adding solid contributors in all seven rounds, and with the 31st pick on Saturday, he’s likely to draft a player who can make the team better on day one. If it’s Johnson, the Giants fans at Radio City will likely respond with a collective shrug ­— but they should be thrilled, as Johnson was dominant in the Sun Belt Conference and impressive at the scouting combine. If it’s Phillips, the secondary gets an NFL-ready player. Either way, Reese’s track record shows that the Giants will be a better team on Monday than they are today.

Mr. Smith is a writer for FootballOutsiders.com.