I can't explain why Maurer, who has moved the ball more effectively than anyone, is not on the field. Don't say he's healthy and then bench your best QB.
If your best QB has been hurt and you need him to win your last 3 conference games and you believe you can win this game without him, wouldn’t it be reasonable to rest him another week? Head injuries / concussions are nothing to mess around with - one more and he’s probably done for the season.