Well aren't you defeating your own point here? Ben Rothlisberger won a Superbowl Championship in only his 2nd year in the pros, and his team played in the MAC. Not the strongest of competition.
Demarcus Ware and Osi Umenyiora played at Troy University, a small college with a student body of 6,800 and played against the less than fearsome competition of the Sunbelt Conference. But they turned out pretty good, don't you agree?
And lest we forget, Steve Mcnair, an MVP QB in his prime, went to Alcorn State, a D-2 school. Big program prejudice is just that, prejudice. The level of competition is a vaild concern but hardly an overriding one. Not when DRC showed he could play with and dominate the big boys in the Senior Bowl. And those who would discount the Senior Bowl as a 'meaningless practice game' are also saying that Patrick Willis' explosive performance there last year showed absolutely nothing about his abilities. Gee who was defensive rookie of the year again?
As for drafting ANY corner in this draft, including DRC and McKelvin, I'd be more comfortable drafting them in the teen range, 10-15. However I'm not going to discount a football prospect outright based solely on the size of the football program they played in. This view I can see is not shared by many here, but I stand by it.