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Everyone who watched Justin Fields’ performance against the Lions left the game believing there was no way the Bears could go back to Andy Dalton.

Everyone, that is, except Matt Nagy.

When Nagy met with the media, he managed to suck the fun out of Victory Monday with an announcement that Dalton would remain the starting quarterback when healthy.

And there’s just no logical reason for Nagy’s continued commitment to Dalton. Especially after Fields flashed his deep ball accuracy and playmaking ability.

He’s an experienced veteran that gives the Bears the best chance to win. Blah, blah, blah. We finally saw what Fields can do with an adequate play caller and a gameplan that caters to his strengths, and that ended with a win.

“When we work through this whole process, we gotta see where Andy’s at health-wise these next two days,” Nagy said. “That’s important. Like we said this whole time, when Andy’s healthy, when he’s healthy, he’s our starter. He’s the (No.) 1. Justin’s the 2. Nick’s the 3.

“What’s been great about these last couple weeks is Justin’s had the opportunity to play and get significant snaps and he’s grown from it. Now we just got to see, where’s Andy’s health at? Honestly, the next two days will be revealing to us. Once that happens and we get a feel for where he is, then we as coaches decide, OK where are we at right now? How do we feel he is percentage-wise to be able to go into that game as the starter?”

If you notice, there’s a whole lot of concern and focus on Dalton rather than the future of the franchise in Fields. Who’s on a one-year deal and who is on a rookie deal for the next four years? Because Nagy doesn’t seem to care about Fields’ development, contrary to what he claims.

It would be one thing if Fields had another clunker like he did against the Browns. But with a good gameplan and adequate play caller in Bill Lazor, Fields found success — and he made plays that Dalton could only dream about.

There’s no way Nagy — or anyone else, for that matter — could watch that game and believe Dalton gives this team the better chance to win. That includes the Bears locker room.

Granted, this was a Monday presser where decisions aren’t set in stone. But if Nagy names Dalton the starter on Wednesday, he better start packing his bags because he’ll be lucky to make it out of the season.