Reading that article really makes me think if Andy Dalton didn't get hurt, Nagy wouldn't have played Fields at all this season. I don't think he had a plan on how to use him nor ever actually bothered at all to look into how to use him until it was thrust upon him because of the injury. It seemed like Dalton was Nagy's plan A, B and C and he was going to "run his offense" come hell or high water.
Other interesting thing to me is the story about Lazor taking over play-calling, the Bears win 4 games in a row with 30+ pts and then only muster 9 points against the Saints with speculation that Nagy went from being hands off to being hands on for the playoffs. It would not surprise me one bit because there were times this season that it seemed like Nagy's fingerprints were all over the play calling even if Lazor was supposedly the one calling the plays. Regardless, I am glad he's gone.
I disagree with any coach or manager/executive that thinks they gotta be an asshole just to be an asshole for people to be successful. For me, the more you insult or embarrass me, the less buy in you'd be getting from me. You can challenge me to do better, tell me what I did wrong and what I need to do to be better, that's fine and fair game. But saying "you're un-coachable" in front of teammates/coworkers would make me, the player, feel like shit and torpedo my confidence. If I saw that happen to a teammate, I'd immediately lose all respect and desire to work for that coach/manager.
The best coaches and managers I've had in life were the ones that would get on you to fix x, y or z but were also willing to take the time to coach you up on how to do better. Maybe I had a bad play or possession, the coach would say here's what you did right, here's what you did wrong, now let's eliminate the wrong and go get it done. Nagy did not come across as someone that realized he needed to actually coach his players up and that they were just finished products. I say that by the way he didn't give Fields any reps until Dalton got hurt and did exactly nothing to help his new QB out against Cleveland.
Anyways, just my two cents.