I don't think he'll be angling to leave whatever happens this season, or even next. There will come a time if the rings don't come though - especially if no Super Bowl win is forthcoming. I think the same can be said of Burrow and Jackson.
I agree McDermott won't be fired yet, whatever happens in the post season. Whether it is time to move on is up to personal debate. Some think a change might work, others are concerned it won't, which is fair.