Fisher rarely looked like he had total command of what was going on in the game - he probably didn't even notice.
It was like he was overwhelmed at the speed of what was happening.
McVay appears very aware of his surroundings and what's going on.
I can't respect a coach who leaves a player hanging out to dry... Martz was certainly one (Warner example cited, but I also recall him exposing Cutler badly). And one of the most egregious examples was Shanahan with RGIII. Not concussion, but he was clearly hurt and Shanahan left him in anyway.
These are selfish people who are only thinking about their own success... not the players.
I do not see McVay being anything like that.