Back to the topic at hand. I am 50/50 on the subject. I believe they can play together. But it takes 2 things first. Time, and both players staying focused. The issue with the playing time at the beginning of the year was Kanter was so timid. And lost his confidence. People bagged on Corbin all year for sitting Kanter when he was playing poorly, or he was the reason for him playing poorly. But the truth is, he wasn't Kanter. He was timid on rebounds, defense and even at times on offense. And all of that was due to his injury, and justifiably so. But I honestly think "benching" him made him better. He was able to come back slower against the other teams bench. And at the end of the season we saw again what he can be when healthy.
I also believe Favors has to stay focused. He has a tendency to not get up for small teams, or "easy games". All players go through this same issue. Play hard against top teams, but then take mental nights off against bad ones. This shows against nights like the ones against San Antonio, and Indiana. When he realizes how to fight that mental part of it. Watch out!
These two actually are meant to play together. If you can keep Kanter on the outside and occasionally post up, and Favors on the PnR and occasionally post up, it will be a Boozer & Memo combo all over again. Yet younger and with a better defense.... We got to the Western Finals with Booz and Memo. Imagine what could have happened if they played defense as well as Favors & Kanter...