I don't think you know what you have with Williams. I was high on this kid, but he really hasn't done much. Now he has added about 30 pds. and you have to wonder how this will affect his play. (Hopefully improves) Hendrix is coming in at that weight and is a much more talented player.
Perhaps Williams can play inside on passing downs like Corey did last year. Anyway, his play has been somewhat pedestrian up to this point.
Vereen is also an unknown. Yes, we keep hearing about flashes in practice, but I'm struggling to remember any game changing plays, which is what you need from a rush end. He is undersized for sure and he hasn't been counted on as an every down player. Dwight Freeney was an underrated, undersized pass rusher.
On another note. I just looked up Rivals top 100 from 2005 top get a 10 year perspective. UT signed 6 players. Morley (bust), Scott, McCoy, Crompton (meh), Coker (cough), Hardesty.
Suffice to say, recruiting aint an exact science.
Suh was the 6th highest rated DT that year.