5% coaching, but that's not AVP's fault, he's actually working well with Maye and getting the right things done with him, but Maye was the most pro ready prospect in a very long time. He just needed to play to learn NFL coverages, NFL speed, etc.
After watching the Washington tape, Kingsbury is way better coordinator than AVP. I think AVP is adequate, maybe average but as Brady pointed out the QB play these days, on average is nothing like it was 10-15 years ago.
Some of the coordinators are so good they take average QB's and make them look like all-pro's. Patriot lucked out getting one of the few QB's that doesn't need that to succeed but if you pare him with a Ben Johnson level OC, like Any Reid and Mahomes, the sky is the limit.
You need to aspire to greatness, AVP been in the league forever, he's not going to ever be better than average.
I don't see any scenario where Kraft gets rid of Mayo in 1 year but if Ben Johnson is interested in the position and you don't fire Mayo and hire Johnson then you are not understanding the modern NFL. It's a no brainer move.