I agree with Ktime and Satch. The crop of QB's this yr were very good prospects overall.....and Williams is one of the better prospects to come out in quite some time. Obviously this does not mean that any of them will/won't make it.
From my armchair, I think the NFL philosophy needs tweaking. To me, I don't know why they don't sell completely out for the most important position by far on the team. For example, if I were a new GM of a program who is going to take a QB high in the draft, I would plunder free agency of every offensive player. I would go into the draft and focus so much on the offense that I would neglect the defense. Our defense may suck for 1-2 yrs, but my new QB is going to be protected, handing the ball off to someone reliable, and throwing to a plethora of weapons. We may not be able to stop an opponent from scoring for a few yrs, but we're going to develop and find out what we have at QB. This is the Tim Couch issue, right?
I also would draft a later rd QB every 2-3 yrs. A late rd QB draft pick shouldn't threaten a franchise QB.....and you never know......you could find a Brady/Bledsoe situation.