It made more sense from a business standpoint to tag Bowe instead of Carr, for 2 reasons. 1) The cost for a franchise WR is lower than the cost for a franchise CB and 2) With the signing of Routt, there is less damage to the team if we lose Carr.
I'm not fully convinced that just because we tagged Bowe then Carr is going to walk. With our cap space we have just as much chance as anyone of signing him as a FA. The Chiefs may be just waiting for him to test the market so they can match the best offer. I think it is likely that Car was not going to sign any (reasonable) offer no matter how good it was. His agent probably advised him to wait for FA and see what other teams will be willing to offer before signing a deal.
I agree that is now much less likely that we re-sign Carr, but it isn't out of the question.
This is exactly what I predicted would happen, two weeks ago, HERE: