Cardinals acquire Kolb

The Arizona Cardinals acquired QB Kevin Kolb today from the Philadelphia Eagles.  They gave up CB Domonique Rogers-Cromartie and a 2nd round draft pick in 2012 for him.  My initial reactions to the trade?  I think the Cards gave up way too much.  I know that QB is the most important position on any team and the Cardinals QB play last year was just dreadful (thank you Derek Anderson) but a former Pro Bowl CB who is only 25 years old and a 2nd round draft pick seems a bit too steep a price to pay.  Kolb just doesn't have the track record to warrant that type of exchange IMO, he's essentially a career back up with rather mediocre numbers (11 career TD's in 4 years vs 14 INT's).   Kyle Orton was still out there, or they could have been more aggressive in pursuit of Matt Hasselback or Donovan McNabb, all of whom have better track records and would have come at a much cheaper price.  Now they also have a hole at CB they need to fill (I was really looking forward to a CB tandem of DRC and Patrick Robinson).  Hopefully, I'm wrong and Kolb will be a solid QB for years to come for the Cardinals, just don't get your hopes too high.