What were his specific contributions there, though? It wasn't like he was making brilliant moves to get them those championships. He had the horses, and the talent won on the field. I'll admit, he's a good post-season manager, because he actually starts to manage the game. In the regular season, however, he does a good deal of harm by undermanaging the team in clear spots that require management (the 7-run rule) and then out of the blue overmanaging at odd times (pulling Hill when he's effective to play platoon matchups).
Time for a change, IMO.