Why are there so many commentators/analysts that were mediocre goalies...?

I am going to suggest that in part it is because most of them were career backups. Backup goaltenders get a perspective that no other player on a bench can get, they watch games from a unique position and hear coaching banter that the other players dont hear. Plus they are often if not always charting the game for the coaching staff so they are often much more aware of the goings on of every game. I have often wondered why there arent more former backup goaltenders landing head coaching jobs for that very reason. Goaltenders more than anybody have to know where the 5 skaters are at all times and where they should be so they can position accordingly so they not only have a unique perspective on their own job but also know what every other guy should be doing and why they should be doing it.