As a Kanter supporter let me just say that I'd like to have him come off the bench. Start Booker.
Let Kanter figure out the defensive schemes against back ups. He'll like that more and let's just be honest, until Exum starts, the ball moves better with the bench unit.
This might work. I like the idea. Booker has both a defensive intensity as well as a sweet outside shot that would make him fit better into the stretch-4 role. The only issue I see with it is that there's some pretty solid chemistry developing in the Exum/Booker/Gobert trio, especially with Ingles as an extra facilitator. I think that bench group is meshing nicely.