This is a solid F and if there was a lower grade, it would be given for this trade. We cannot ignore Jerry gave up a first round pick for Cooper. We also cannot ignore that blaming Cooper for the offensive woes is misplaced blame.
Further, Jerry is the one who overpaid Cooper in the first place. Now he is forced to let him go for peanuts because he overpaid several of his players and someone has to go to right Jerry's wrong.
I have no problem getting Cooper off the team. He has a history of disappearing half the games he plays. He is not a "winner". He is not a leader on the field. I know why "Chuckie" Gruden put him on the trading block and it is the same reason Dallas has traded him now. But there is no way around Jerry giving up a 1st round pick for Cooper then getting a 5 back. Jerry diminished Cooper's trade value with his post-playoff commentary.
The worst part of this trade is Jerry seems to be blaming Cooper for the performance of the offense and Cooper was only a small part of it.