I've watched a lot of football this year, more than usual as I'm not working and I have the cheaper European game pass. And if finally reached where a decision on Mac.
First, let me say he absolutely deserves the rest of the year to prove he deserves to be a starter. This is the put up or shut up year. Second, let me say that unlike a lot of the other QBs drafter in his class, he is definitely an NFL QB. But I just don't see him as a starter on a good team. Watching Carolina and the Raiders play, it really struck me that Andy Dalton and Jimmy G are making throws down field that Mac just doesn't. He either doesn't have the arm or the accuracy down field. This might be something that you could work around if he were spectacular at the mental part of the game, the decision making, and the short throws, but from what I've seen he is, at absolute best, good at those things, not great. He needs to be great to be an NFL starter with his arm. If he fails to show dramatic improvement over the rest of the season, I'd let him walk if he won't reason for short money. He's not terrible, but I've seen no evidence that he isn't pretty easy to replace. If we have to sign him, better to draft another QB or sign some mediocre QB who is already Mac's best case.