In which case, I'd like to see a couple more added to the list:
Scout - give him/her some rough parameters for players you're after and they'll alert you to opportunities. That could be free agents, upcoming draftees, or veterans whose contracts are running short.
Front Office Manager - increases the level of attendance to home games and/or the affect the home crowd has on games.
Conditioning Coach - decreases the likelihood of receiving injuries, improves the performance of players who are coming into games "cold".