I don't think they are opposites. You simplify the process, put your guy in the best position he can be in, and live with the results. If a guy knows he has a short leash, confidence goes down and there is too much thinking about getting pulled for a mistake. So, I think a short leash complicates things.
To me, if I am the coach (and I am not, for the record), my guy is the guy unless something drastic necessitates a change. I'm not flip-flopping back and forth. At least not at the QB position.
Ahh, I got you now. That makes sense.