Honestly, the more people that a player has around to talk to, the better as far as I am concerned. No one coach is going to be able to reach everyone. They could be saying exactly what needs to change, but not getting through to the player. Look at Yoan. Do you honestly think it took someone 5 months to tell him to start swinging at pitches on the fringe of the zone a little more? No way.
Having a guy like big Jim around can do nothing but help.