I don’t think all of those deep shots on 3rd and short were on PC, many times Carr was throwing what looked like an alert route when the progression underneath was open, that or he waited for plays to develop down field when the underneath option was open with a chance for a first. That happened on the play he was hurt on against GB, Graham was open with a chance at a first and the deep routes had 5-6 defenders deep against three receivers.
I think what appears to be your main theory of putting too much in Carr’s hands likely is a bigger culprit in his down year, asking him to throw 50+ times in close games probably isn’t going to work. That said, there’s probably a lot of pressure to put up some big passing numbers this year to justify that contract, if we sent him out there with a Dalton offense to get Dalton numbers then the immediate question would be why did we sign the guy?
Since at this point he is putting up worse than Dalton numbers, that question has come up anyway.