You're oversimplifying things, the way I'm sure Pace might want you to. The Bears are seriously devoid of talent at key positions, we all know this. There's no excuse for instance for the receiver situation in year 3 of a rebuild. It may be unreasonable to expect All-pros there, but how about something above a Peter Principle'd Special Teamer?
Fox is awful, seemingly everyone agrees. But did he really turn, say, a 9-and-7 team into a 5-and-11 one? Of course not. If you're going to suggest that Pace wasn't given the tools he needed to succeed (i.e. his own Head Coach) then you have to admit that Fox wasn't given the talent he needed to succeed either, especially if he was only going to be given three years.
I'm not going to defend John Fox as I've despised him from Day One. But this failed rebuild is a TEAM failure that Pace shares significant responsibility for. He'll probably survive here, but he needs to move quickly to avoid his own Black Monday presser in 2020. No more excuses . . .