All good points and they are suffering at WR right now. Could be that Abby and Monty come back and they make enough of a difference.
The tinkering might have put M3 far enough out of reach of his players to where the "doing their job" part was affected. Maybe he didn't know about the video game problem until just recently. He might have had more of a firm hand in the player preparation in previous years and maybe his distance from the offense is just enough to let that wane and lapse into LAN parties.