an agreement or agreement can be made that some coaches should still coach as long as they can and some others should hang up the whistle no matter how long they've coached.
I would also say a record is not always an indication. Some take weak teams further than expected some do not take teams as far as they should. (regardless of longevity)
Why not List the coaches years of service and record and playoff appearances.
Personally, I will say the coach shouldn't be someone the players grandfather went to college with.
