Davone Bess, Hawaii
Despite posting huge numbers with the Warriors, he's considered a "system" receiver. His lack of elite speed hurts, as well.
Adarius Bowman, Oklahoma State He was productive on the field, but had a horrible postseason, including an awful performance at the Combine. His latest off-the-field issue clearly was the last straw.
Dorien Bryant, Purdue
Like Bess, he's considered a "system" receiver. He lacks size and doesn't possess breakaway speed.
Pedro Sosa, Rutgers
He's a bit undersized (6-4/300) to play tackle in the pros (he might get a shot at guard). Sosa also has been bothered by injuries and had knee surgery in March.
Eric Young, Tennessee
Young is another who may be a bit undersized (6-4/308) for tackle in the NFL, and he could get a free-agent shot at guard. His biggest problem is showing he's over a severe leg injury that caused him to miss more than half of the 2007 season.
Robert Felton, Arkansas
He's a powerful run blocker, but he's not all that athletic and needs help in pass-blocking. On the plus side, he has played all five line positions. That versatility will help him stick as a free agent.
Adam Kraus, Michigan
A two-time All-Big Ten player and a three-year starter, but he was overrated a bit in college. He needs to add bulk and strength. He isn't all that athletic.
Fernando Velasco, Georgia
Was the leader of a young Bulldogs offensive line last season, a line that helped paved the way to an 11-win season. But he's considered a raw prospect at center, and his lack of athleticism doesn't help, either.
Art Carmody, Louisville
Extremely accurate but lacks a strong leg. Probably wouldn't be used to kick off in the NFL.
Bryan Mattison, Iowa
He was a three-year starter for a solid defense in the Big Ten, but though he has a great motor and is productive, he might be a half-step slow and lacks ideal size (a bit under 6-3).
Eric Foster, Rutgers
A second-team All-American as a senior, his lack of height (he's 6-2) is a big concern whether he stays at tackle or moves outside to end.
Darrell Robertson, Georgia Tech
It's surprising he wasn't drafted. He has good quickness and can run sideline-to-sideline, but he's a bit small (245 pounds) and can be overpowered when teams run right at him.
Vince Hall, Virginia Tech
A solid player who has good instincts, a great motor and packs a wallop. But he's undersized and doesn't run all that well.
Erin Henderson, Maryland
Extremely productive with good size. He's aggressive and plays with a mean streak. But he's considered a half-step slow, isn't a great athlete and has had injury problems.
Ali Highsmith, LSU
A three-year starter for some mighty fine defenses, Highsmith plays hard and can move. But he's too short for some teams, has trouble shedding blocks and isn't that instinctive.
J Leman, Illinois
Productive four-year player for the Illini and a great team leader. Has adequate size, too. But he lacks speed, isn't a great athlete and has suspect coverage skills.
Marcus Walker, Oklahoma
Played a lot of football for the Sooners and has good size and speed. But he has poor hands and lacks instincts.
Jonathan Zenon, LSU
Zenon produced as a Tiger and has good size and other attributes. Alas, the one attribute he's missing is speed. Still, he could stick as a dime back and/or a special-teams player.
Marcus Griffin, Texas
The first-team All-Big 12 honoree was productive for the Longhorns but he lacks ideal size (he's a shade under 6-0), doesn't have great speed and isn't all that athletic.
Jamie Silva, Boston College
He was superb as a senior, earning numerous All-America honors, but he's slow and isn't a great athlete.
Brett Kern, Toledo
He was second in the nation as a senior, averaging 46.1 yards per boot. The only knock may be that he was inconsistent before 2007