People who get drunk and drive are merely stupid....or sick or both. Not malevolent. They don't steal guns from police or the military or head to black markets for something to kill intentionally. Obviously, that's not what's being talked about. Logic eludes you HH. You have your categories mixed up.
Bill Belichick learned to film signals of opponents from the former Chiefs, and Charger's coach Schottenheimer. Others like Edwards, Johnson and Cowher did too. They learned from the CHEATS and CHEATERS who still couldn't win.