Dude, davecrazy is right, these rules were put in place so that gamblers could not gain an advantage from inside info, this is well known. This is also the reason for the rules on putting the 3rd string QB in, if a gambler knows in advance that the coach wants to give a backup QB some reps it will help the gambler.
Coles has a brain injury, no big deal Shotty simplified the playbook for the Chiefs game this week. Coles will be fine.