Let's not go overboard. First, you're judging Clausen after only two years in college. A lot of QBs struggle as underclassmen. Ryan Mallett was a complete mess as a freshman and I don't know how much better he would have been in 2008 had he stayed.
As for Weis as a recruiter, even if he's having a down year this year it's not horrid - it's still better than the two classes that were signed before he arrived. And it comes off the heels of three straight top 10 classes. I don't like him and I think he's a suspect coach, but I'm not sure if this is a really a sign of a long-term recruiting downswing.