SHOCKING NEWS: Detroit Tigers head coach just summitted his resignation letter to the management.

It wasn’t perfect, but Detroit Tigers right-hander Casey Mize competed his way through six innings.

The leadoff hitter reached safely in five of his six innings, and Mize recorded just two strikeouts, but when he walked off the mound for the final time, the Tigers had the lead and were in position to win the game.

“I was proud of that compete factor, for sure,” Mize said.

The Tigers, though, squandered Mize’s gritty effort in a 5-2 loss to the Houston Astros in Friday’s opener of a three-game set at Comerica Park.

The Tigers wore their City Connect uniforms for the first time in Friday’s game, and they’ll wear them again for Saturday’s game.

The new “electric blue” threads didn’t spark a better version of the Tigers.

The Tigers (19-19), who finished 1-for-10 with runners in scoring position, have lost six of seven games, falling to .500 for the first time this season.

But Mize wasn’t the problem in Friday’s loss, as he surrendered just one run on five hits and two walks with two strikeouts in six innings.

“It’s certainly a tough stretch right now,” Mize said.

“I think we just got to keep doing our thing. We just got to have more stuff click together at the same time.

I think we’ve been a little inconsistent. We score runs one day and don’t pitch well, and vice versa. It’s going to click for us and be together consistently. Better days ahead.”

Left-handed reliever Andrew Chafin and right-handed reliever Jason Foley were responsible for allowing the other four runs in the eighth inning, with the first three runs charged to Chafin’s tab.