Stifle Tower
Punch Bowl Re-Filler
Locke showed otherwise. According to him it was one of the more successful coaching paths. Listen to that podcast.
Give me names. Ex-players of course can make great coaches. However, I posted a table of the top-15 winningest coaches in NBA history and there was absolutely no correlation as to type of player (superstar vs. rotation vs. bench player) or even to playing professionally or jumping into coaching out of college or another profession.
And of the successful coaches who were NBA pros, almost every one of them came up through the coaching ranks.