If the Bears decide trading Justin Fields is their best route, they’ll be facing another problem. They will need two quarterbacks, not one. One would obviously be Caleb Williams. Then they would need another one.

This isn’t necessarily advocating the Mike Glennon/Mitchell Trubisky or Andy Dalton/Fields re-enactment but finding another one is beyond a borderline necessity.

You’ll remember the Glennon disaster. He was going to be the bridge to when Trubisky was ready and instead he was a bridge to nowhere. Glennon told everyone “This is My Year,” after Ryan Pace paid him $43.5 million over three years to come in and go 1-3 with five interceptions, five fumbles, eight sacks and a 76.9 passer rating. Then John Fox decided the big guy’s “year” was over and it was Trubisky’s team for better or worse.

You’ll also remember Dalton signing for $10 million and one year, promptly becoming starter while Justin Fields had to come into a terribly difficult situation behind two veteran QBs on an old, losing team getting ready to be broken down and dispersed. They still had former Super Bowl MVP Nick Foles then, besides Dalton, who then repeated what Glennon said with the proclamation: “This is my time.” His time lasted less than Glennon’s time.

Dalton started one full game and almost a half of another until a knee injury and then only played as backup to Fields when the rookie was injured.

And this is exactly the point: It took 1 1/2 games for Dalton to be out of the lineup.

If the Bears draft Caleb Williams and move on from Justin Fields, it leaves them with the rookie from USC at quarterback and Tyson Bagent, he of 4 1/2 games experience after Division II ball without being drafted.

Is that how much experience you want to go into an NFL season with at QB?

If the Bears go into training camp with Caleb Williams as starter and Bagent as a backup, they need a veteran on the staff to be the real backup in case of a Williams injury.

The Bagent five-interception game against New Orleans is still fresh in everyone’s memory, when his lack of arm strength got exposed against a non-playoff team.

There’s always Nathan Peterman, if they want to bring back someone with a career 39.4 passer rating.

A new offense and coordinator is a good time for a fresh start at starting quarterback and also, then, at backup QB.

Here are veteran free agents who could be available if the Bears want to go shopping for a proper backup to Caleb Williams, rather than have one who throws five interceptions or one with a career passer rating lower than his completion percentage.

When you get past the potential starting quarterbacks who will be free agents, like Baker Mayfield, Kirk Cousins and Ryan Tannehill, there is a long list of possible backups.

Some are experienced enough and good enough to start for a period of time in case of an injury to Williams.

The backup who learned Waldron’s system last year would be the ideal Bears backup behind Williams. He’d even be fine under Fields if they chose to go that route. He got to throw only 76 passes in four games and two starts within Waldron’s offense last year but won a big start against the Eagles. He posted respectable 7.1 yards per attempt lasty ear with 63.2% completions, three TDs and three interceptions and has 28 TDs to 23 interceptions for his four-season, 23-start career. He made $4 million last year.