The difference (aside from personality types, which is indeed a MAJOR factor) lies in the difference between an ACP and a CP: the former still bid for and fly the line a couple weeks per month; the latter have no idea what it actually means to execute the policies and procedures being handed down from on high, and have no understanding or appreciation for what it's like flying the line each and every day. They are company men, and that is how they get that position.

In a former life, I was a west coast guy and flew with all parties being discussed. Most of the ACPs and Flt Ops Sups were good guys. MH? He should not be trusted by any line pilot, and frankly he should never be in either pilot seat of any aircraft without a steadfast and confident LCA willing to take the controls regardless of who is in the other seat.