Long believes that Trubisky will respond well in 2020 if the Bears back him properly in other areas, such as by running the ball and protecting him better. But before Trubisky can showcase better form after a poor 2019, he must move past the criticism, as Long explained on the McNeil & Parkins Show on Wednesday.
"It's not a Mitch conversation as much as it's a spotlight and quarterback conversation and, to be honest with you, a Chicago thing," Long said. "The quarterback position has been a polarizing one in this town for a very, very long time. You have a high pick in Mitch and he has tremendous success early and shows great promise, and then we see the regression across the board from everybody involved at Halas Hall this year.
"One thing that I can say about Mitch is that I know he has the skills to win in the NFL. One thing I can say about Matt Nagy is I know that he has the football mind and the ability to lead men and win in this league. When those two find a way to blend their talents, their skill sets and their knowledge, it's going to be fun to watch coupled with that defense.
"If he has the right people around him, if they can protect him and if they can run the damn ball, he will have success."
Trubisky, 25, completed 63.2 percent of his passes for 3,138 yards, 17 touchdowns and 10 interceptions over 15 games in 2019, his third NFL season. The Bears went 8-8 and missed the playoffs after winning the NFC North a year earlier.
A three-time Pro Bowl guard with the Bears, the 31-year-old Long announced his retirement from football in January.