I see two options, but Smart will have to earn it in both cases, and I think he will, eventually.
option 1: A Rondo Smart starting backcourt with AB off the bench. I love this option, because though Bradley is a better shooter than Smart I think Smart will have a bigger impact overall. Bradley can still get big minutes. I think Rondo and Smart will cut teams apart with great chemistry between them.
option 2: Rondo is traded for a starting center and we start Smart and AB.