Teletopez

Deron is playing like hot garbage, but there's more reason to believe he'll get things figured out than to believe that Avery will ever install a competent offense.

the two aren't symbiotic?

In many ways, yes. But if you want to look at it that way, the blame goes to Avery. Deron can be looked at independently and criticized for not being himself in situations that are unrelated to the coaching. But it would do wonders for Deron if he were playing in a reasonable system.