At this point it is run by committee so i am not sure it matters other than Rock's ego. Just as long as Mason does not get any calls in the redzone on a stretch play, I don't care at this point who they call the starter.
I do find this quote quote by Smith kind of weird, "..It’s not what Rock isn’t doing, it’s what Quinton may be able to do for us that Rock’s not doing, so we’ll just give him a chance.”
Umm...he says it's not what Rock isn't doing and then says Quinton will do what Rock is not doing? So, it is what Rock isn't doing, like finishing off a run.