I have defended Pace pretty strongly on this board, but I will tell you after Sunday's defensive performance, giving up a 147.9 QBR to Rodgers.. he is understandably on shaky ground.
If the Bears want to run it back next season I don't have a problem. See if our defensive problems are coaching and injuries... or just a lack of talent. They played pretty well the first half of the season. If the defense regresses again next season, Pace is gone.
Offensively, I don't know what you do. If you keep Pace/Nagy, and sitting where we are in the draft I think, you grab a Tackle, another CB or DE and help at WR and try to get Trubisky on a team friendly 2 year deal, letting the next regime deal with QB if the team fails next season. Maybe if you let Lazor call plays all season and with a healhty defense you can get to 9-7 or 10-6.