Management pilots include all chief pilots from all airlines. They are chosen by the company as representatives of management to the pilot group.
I believe what you may be referring to are management pilot positions that are hired from "outside" the rank and file of line pilots. These folks are normally hired off the street. UPS hires "management pilots" for training positions and other various positions that their rank and file don't want (better let a Brown guy elaborate more on this).
At ASA, our company Chief Pilot was hired off the street (outside of the company).....