[fireftr18]

For the engine room, you want high mechanical ability.
For the control room, you want high command ability. High mechanical helps.
For the conning tower, high electrical ability. Watch ability helps.
For the torpedo rooms, you want a combination of high mechanical and guns ability.
For watch, you want high watch ability.
For guns, you want high guns ability and high watch ability.
For the damage control crew, you want high mechanical ability. High electrical ability helps.
For every compartment, every shift, you want the leader to have high ability for the compartment and high command ability.
After taking time to get your crew set, then you don't need to mess with them again. Although, crew members will get promoted and/or gain special skills in which you may want to move them for the better benefit.