Overriding an animation's rotation / LateUpdate-ish function in playable?

Any chance the override animations will eventually be able to override the rotations? I want to manually animate where a character is looking, but it automatically resets because of the main animation.

Additionally, is there any idea of a LateUpdate type function in the playable? If we want to create a playable that overrides an animation per frame, how would we do this? It seems to me that there is no guaranteed order in the clips for which will run first, correct?