On your question I have questioned Dan's QB rotation usage ever since he has been here. I always thought he should do it more situationally but he always did it as Guy A gets a series then Guy B gets a series. Finally the last two weeks he has done situational substitutions, but he did it to kill a drive and then when a pass was called for he didn't put his passer back in. Part of situation substitution is momentum. When one of the guys has a hot hand, don't take him out.
I really thought Relf gave us the best chance to win last year. I expected him to continue that, but he seemed to regress in the passing and totally stopped getting the tough yards running. So yes, I agree that Russell deserves the keys.