Winning a meaningless game at the end isn't going to make or break virtually anyone on that roster. Their coach will be fired by Monday. The players aren't going to have some sort of dance party at midfield after finishing with 5 wins. The ownership and GM structure is going to look at a loss of substantial draft points dropping down 3+ spots in the first. They need a QB like nobody's business and the best bet is to stay at 2 or even consider a trade up to 1 if Chicago puts the pick on the market. They need to re-energize a fan base that has been eaten alive for 20 years by a cancerous owner.
Basically, if Mike can't pull this one out, he should be fired in the locker room. If Howie Roseman was on the other sideline in Washington's shoes, he'd order that the starting QB be pulled for some scrub to ensure the loss.