I think alot had to do with Iowa's team on the field in 08 and 09, not a lot of room to come in and play right away. Then you had guys in 08 like Cato, Paine, Blackwell, Staten, Guillory all leave, then the crap with Hampton and Robinson and it added up quickly. 09 our best recruit was Wegher, and we know what happened to him, leaving Davis as the only 4 star in a 2 year period, and I think that's what you're seeing now from this Iowa team.
Recruiting classes always look good when they first start out. That's before the attrition and injuries start. Happens everywhere.