Summary: Trent Williams is a very solid left tackle prospect, but he has lots of room to improve in the running game and I don't think he will ever be considered an elite pass protector in the NFL. Williams is making the move from right to left tackle in 2009, and NFL scouts will be monitoring his progress closely. The official Oklahoma Web site claims he runs the 40-yard dash in 4.82 seconds... we'll see about that at the Combine.
Player Comparison: Donald Penn. Penn is an athletic pass protector, but lacks a nasty demeanor against the run.
I think Dalvin Cook is the best fit, but it's close...they need a CB to replace Josh Norman, but it's a deep class. And I'm sure Rivera is looking at Barnett and Charlton, a DE is always on their list.
As the NFL Draft approaches, I will be making weekly adjustments up until the 27th of April. Rest of the writeups will be coming later this week. Any questions/comments/criticisms can be voiced in the comments. I will respond to all.