Sometimes, even when things are going well, it takes a bold move to make them better in the bigger picture.

This is where Bears coach Matt Nagy stands right now.

Last Sunday, down by 16 points in the third quarter against the Falcons, Nagy benched 2017 second-overall pick Mitchell Trubisky in favor of America’s favorite backup quarterback, Nick Foles.

The next day, Nagy made official what everyone already knew was coming after Foles helped engineer a 20-point fourth-quarter scoring burst in a stirring 30-26 comeback victory: Foles has taken over as the starter.

The Bears are 3-0 entering Sunday’s game against the Colts (2-1), and yet Nagy made a quarterback decision that he hopes pushes his team further when the games become more important than they are now — later in the season.

Nagy could have stuck with the status quo, thanked Foles for providing a spark against Atlanta and gone back to Trubisky, whom he had declared as the training camp winner of the quarterback competition just a month ago.

But, after what Nagy saw in the first two-plus weeks of the season from Trubisky, coupled with what Foles, who was signed as a free agent in the offseason, did last week, the Bears coach believes Foles has a chance to take the team to greater heights than Trubisky.

So … we’ll see.

The reality is Trubisky never has been fully embraced in Chicago, and that’s an understatement.

Whether Foles is the answer for the Bears remains in question. He’s proven to be an efficient fire-starter coming off the bench. Just ask Eagles fans who watched him take over for the injured Carson Wentz in 2018 and lead Philadelphia to a Super Bowl title, winning Super Bowl MVP in the process.

But when Foles has been given the keys to the kingdom, the results have been mixed.

In 2019, Foles parlayed that Super Bowl run into a four-year, $88 million free-agent contract with the Jaguars and totally bombed — getting injured, going 0-4 as their starter and being replaced by Gardner Minshew.

Before that, Foles turned his two strong seasons in Philadelphia (a 14-4 record in 2013 and 2014) into a big contract to be the St. Louis Rams’ starter in 2015 after the Eagles drafted Wentz to be their franchise quarterback.

Foles flopped, going 4-7 with the Rams in 2015, throwing just seven touchdown passes to 10 interceptions.

So here he is again as a starter.

Adding to the intrigue of this game is the fact Foles will be playing against the coach who had the most profound effect on his NFL career.

Frank Reich, now the Colts’ head coach, was an assistant with the Eagles when Foles took over for the injured Wentz in Week 14 of that 2018 Super Bowl season.

“He was the one who really figured me out as a player and realized that we had it all wrong,” Foles told reporters this week. “They just threw some plays out there one day and said: ‘Just go play these plays. We studied you and these are the plays you do.’ And sure enough, something triggered inside of me.’’

Reich called Foles “a great point guard” and “a magician with the ball.”

The two have played against each other once before — last November in Indianapolis, when Foles’ Jaguars lost, 33-13.