IMO, how little true major blitzes we've seen this year is an indictment of the money given to Carr and the high pick spent on Claiborne.
I think it is fine to build a defense around great CBs who require minimal assist from other players on the field so that you can send more guys after the QB but then you have to be able to find those players. $50 and a top 6 pick later and it looks like we swung and missed twice. Now neither of them are bad players but I also would say neither of them in nearly as good as TNew and Mike Jenkins were in 2009.
Claiborne is still young and can improve but he has major physical limitations as a CB - I've never seen a top 10 CB who was such a limited athlete before. Carr is as good as he is going to get at this stage of his career which is not bad but far from great.
The GM of this team needs to be held accountable for these decisions but it will not happen.