Pierre-Paul, Morgan fit best in 4-3 schemes

Editor's note: All 40-yard dash times listed below are unofficial unless otherwise noted. Scouts Inc.'s daily combine buzz will include as many official numbers as possible and expanded takes on players mentioned in the blog.

• South Florida's Jason Pierre-Paul and Georgia Tech's Derrick Morgan both project as 4-3 defensive ends, and nothing we saw Monday changed our minds about their high-first-round grades. Both did a good job of opening their hips, and they occasionally can drop into underneath coverage on zone blitzes. However, they had difficult times bending their knees while backpedaling and didn't appear as comfortable in space, so their contributions in that area could be limited.

• Missouri OLB Sean Weatherspoon has been impressive thus far. After weighing in at 239 pounds and measuring 6-1⅜, he put up 34 reps on the 225-pound bench press, then posted an unofficial 40-yard dash time of 4.57 seconds. That comes as little surprise, though, given the above-average range we saw from him both on film and at the Senior Bowl.

• Virginia Tech's Cody Grimm is an interesting prospect. Grimm appears instinctive and relentless on film, but he played outside linebacker in college and is just not big enough to line up there in the NFL. He measured just 5-10⅞ and 203 pounds and would be a better fit at safety, where he would have the potential to develop into an adequate reserve and special-teams contributor. Grimm's 4.54 time in the 40 is encouraging because the average time for safeties last year was 4.63 seconds and in 2008 was 4.55 seconds.