Scout.com: 2009 NFL Draft/Post-Combine - Def. Tackles: "7. Sen’Derrick Marks, Auburn 6-2, 306
Pre-Combine Position Rank: 4
Post-Combine Skinny: While he bulked up a bit to be more of a true tackle than a big end, he struggled to look smooth. He didn't lift, but he ran a nice 5.03 in the 40. He didn't do enough to up his stock.
Positives: Quick enough to be an end, tough enough to play tackle … Ultra-productive. Was the focus of everyone’s blocking scheme … Can really, really move.
Negatives: Might not have a true position. Needs to figure out exactly what he is … Short. Doesn’t have much room to get any bigger"