I used this space on Friday to explain why I see Nick Foles as the clear favorite to be the Bears’ starting quarterback in Week 1 of the 2020 season. Based on the information we have, it’s easy to see why Foles should beat out Mitch Trubisky in the Bears’ “open competition.”

And I very much believe that'll happen. But I do want to acknowledge something here, an unknown of sorts: We don’t know how Trubisky will handle a legitimate competition.

“The competitor that Mitch is, the way that he was with us was really neat to see because he embraced it,” Matt Nagy said. “It wasn’t about excuses, it wasn’t about anything other than, ‘OK, I understand that, I’m gonna give you everything that I’ve got, we’re gonna compete, and you’re gonna get that best that I’ve got.’”

Nagy and Ryan Pace both talked up Trubisky’s competitive nature when discussing the Foles trade over about 40 minutes on Friday. It’s all they can talk up at this point — anything else about his game or past results would’ve been hot air. Maybe the competitiveness thing is hot air, too.

But this brings up a question that’s lingered as Trubisky’s career has drifted into disappointing territory, so follow my tangent: Why wasn’t he North Carolina’s starting quarterback sooner in college?

Trubisky sat behind Marquise Williams for two and a half seasons before taking over as the Tarheel’s QB1 in 2016. Williams spent one training camp with the Green Bay Packers before being cut and spent the next few years as a backup in the CFL, AAC and XFL.

Trubisky — the second overall pick in 2017's draft — couldn’t beat that guy out? Huh?

The thing is, though, there wasn’t really a competition in Chapel Hill for the Tarheels’ starting gig. Williams QB’d five consecutive wins to get North Carolina to a bowl game in 2013, then was pretty good in six-win 2014. North Carolina went 11-1 in 2015, Trubisky’s third year on campus, with Williams as their guy.

Former UNC quarterbacks coach Keith Heckendorf explained to me after the 2017 draft why there wasn’t truly a competition for Trubisky to win.

“That success we had as a team with Marquise made it hard for us to pull him out of the lineup,” Heckendorf said. “And I think if (Williams’ success in 2013) hadn’t happened, there may be a completely different conversation. It was not for a lack of talent, it was not because (Trubisky) wasn’t capable, but it’s hard to take a guy who had the success — not only as the team winning but individually — as Marquise had and put him on the bench for an unproven commodity.”

Of course, if Trubisky were lighting things up in practice and limited game reps, he would’ve forced UNC’s hand. He didn’t.

But the point is Trubisky’s failure to win a starting gig in college sooner wasn’t necessarily the product of him losing an open competition. He pushed Mike Glennon as a rookie in 2017, but he didn’t show up to training camp in a true “battle” (especially as he QB’d the third-team offense so much). He took over for Glennon because, first and foremost, Glennon was a disaster.

So we don’t really know how he’ll handle a competition the Bears are framing as fair and even.

Chicago Bears Maillot，Could Trubisky all of a sudden grow with the challenge to his job? Could the mere presence of Foles get him to start hitting more deep balls, or make the right reads at the line, or help him avoid those head-scratching interceptions?

Probably not. Football types love to say competition brings out the best in everyone, but it’s hard to see it erasing three years of inconsistent tape.

But we don’t know for sure. For what it's worth, this worked for Kyle Fuller three years ago, when the Bears signed Marcus Cooper and Prince Amukamara and he wound up winning his old job back, and then keeping it.

Trubisky, too, still has more upside than Foles. The Bears would much rather start the version of Trubisky Pace hoped he was getting in 2017 rather than a 31-year-old with 13 starts over the last four years.

Still, Foles is most likely going to be the Bears’ starter when the 2020 season begins (hopefully on time). But the Bears should at least take a look at Trubisky in a true competition.

It may not need to be a long look. But it should be a look.