The herd of scouts thinned out on Day 4, but there were a few players who made lasting impressions — good and bad.

Baby boomer

Nineteen-year-old defensive tackle Amobi Okoye of Louisville put on a show this week. His aggressiveness, explosion, high motor and pass-rush ability really impressed the scouts.

At 6-foot-2, 287 pounds, Okoye is an undersized defensive tackle, but teams love everything about him. He played a lot of the three-technique in college, where he utilized his speed and quickness to wreak havoc in the middle. That likely will change in the pros due to his size. Okoye could be available when the Bengals make their selection at No. 18.

Mistaken identity

Texas-El Paso quarterback Jordan Palmer, younger brother of Bengals QB Carson Palmer, may share some of the same physical characteristics as his older brother, but that's about it.

Jordan has struggled throwing the ball throughout the week and had some scouts wondering why he bothered to show up. One word to sum up his performance this week: Inconsistent.

Palmer does have potential and a strong arm, but so did Ryan Leaf.

Analysis

Michigan State QB Drew Stanton is athletic, has a strong arm and is accurate. But he didn't wow anyone. From a technical standpoint, Stanton appears to have it all. He is fluent in his drop-back, stands tall in the pocket and makes good reads. The problem might be his mechanics.

At first glance, the 6-2, 226-pound Stanton appeared to have a hitch in his delivery. But after studying the quarterback closely, I noticed that he puts an awkward grip on the ball, cupping it in his hand. Stanton's passes tend to have a little wobble to them, causing the ball to lose some velocity. This also causes him to be late with his passes and throw behind receivers.

This can be corrected with proper coaching. If memory serves me correctly, Peyton Manning had a similar problem when he came into the NFL. At this point, I have Stanton projected as a third-round selection.