If Kuper was cut it would accelerate any pro rated bonus money. He didn't end the year on IR, so I don't see why he couldn't be outright released. But we would owe him any bonus money, which would all accelerate to this years cap.
As far as talent is concerned, I think Beadles and Walton and all the OLine members for that matter benefited from the placebo known as the PM effect. Because those two are the weak links, I would have no issue with replacing Kuper at LG/C.
I also have no issue with using the non exclusive tag on Clady, getting outbid by say a team like Arizona/San Diego and using their first round pick on that stud Lane Johnson.