Um, for him to step up in the pocket rather than bail/go fetal. Yes, there were times that this wasn't an option, yet there were plenty of times he shied away from a clean pocket when all he had to do was freaking step forward and buy himself a few extra seconds. He must find that part of his game, or nothing else will matter.
And, yes, every once in a while he's going to have to stand in there and take a damn hit to make a big play. That's also part of the job. Of course you don't want him doing it all the time, because he's limited due to his size. He damn sure better be able to do it, though, or I don't want him.
This post, though it sounds highly critical of KM, isn't meant to be that. I want and hope for him to take the leap to the next level. The idea of thinking it's okay for our QB to just turtle at any sign of contact is silly to me.