Dan Campbell said Tuesday he has "no idea" who will start in the Detroit Lions' secondary this fall, a testament to the group's depth and the work the front office did overhauling the unit this offseason.

There's far less intrigue about who starts at wide receiver — Amon-Ra St. Brown and Jameson Williams are clearly the top two pass catchers — but the Lions do have decisions to make at the position further on down the depth chart.

Kalif Raymond is locked into a roster spot and would be my favorite for the No. 3 job. He's a downfield threat despite his size, he's guaranteed to be up every week as the team's punt returner and he's been a reliable player the past three years.

After that, it's anyone's guess how the position plays out.

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Donovan Peoples-Jones has a chance to win the No. 4 job after re-signing with the team this offseason. Peoples-Jones hasn't done anything to catch my eye this spring, but the Lions thought enough to trade for him last year and he isn't that far removed from his 61-catch season in 2022.

Antoine Green, a sixth-round pick last year, caught a touchdown in team drills on Wednesday and is back on the field after dealing with an MCL problem this offseason. The Lions like his upside, he has special teams ability and he said he feels more comfortable in Year 2 of the offense.

Daurice Fountain is a player I'll be watching come training camp in a bid for one of the back-end receiver jobs. Fountain adds size to the competition at 6 feet 2 and 210 pounds and continues to get some work with Jared Goff and the rest of the first-team offense. He spent most of last season on the Lions' practice squad, and Campbell said Wednesday that counts for something.

"He’s in the mix," Campbell said. "I mean we still have a spot open, I mean, we’ve got a couple of spots. We know what Saint is, we know what Leaf can bring to the table, we like where Jamo is going, but, I mean, there’s still — you go 11 personnel, we’ve got another spot over there.”

The Lions have 12 receivers in camp and could add to the mix down the road, though that does not seem to be an immediate priority. Kaden Davis seems to make a nice catch or two every practice, Tre'Quan Smith has a history with Campbell from their time together with the New Orleans Saints and the Lions have two undrafted rookies in camp.

For peace of mind if nothing else, it'd be nice if someone other than St. Brown, Williams and Raymond proved to be a consistent threat, even in practice.

More observations from Wednesday

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Cornerback Khalil Dorsey suffered a lower leg injury during the final seven-on-seven period of practice on Wednesday and was carted to the locker room.

Dorsey fell to the ground while trying to follow Tom Kennedy as Kennedy changed directions on a shallow route across the middle of the field. He walked off the under his own power and sat on a Gatorade coolers as trainers examined his lower leg before riding shotgun in a cart on his into the team's Allen Park training facility.

Dorsey returned an interception about 100 yards for a touchdown on Hendon Hooker earlier in practice, jumping an out route on the goal line intended for Jalon Calhoun. He had been taking first-team gunner reps this spring and is in the backup mix at cornerback, where the Lions have improved their depth with the offseason additions of Carlton Davis, Amik Robertson, Terrion Arnold and Ennis Rakestraw Jr.

Last line of defense

Arnold returned to practice Wednesday after sitting out Tuesday's session and took most of the first-team reps opposite Davis. He had a nice pass breakup on a third-and-7 play when the Lions were doing situational work at the end of their team period, playing sticky coverage on St. Brown and reaching around the outside of St. Brown's body to deflect a comeback.

Fellow defensive backs Brian Branch, Kerby Joseph and Emmanuel Moseley, along with defensive linemen D.J. Reader, Marcus Davenport and Kyle Peko, running back Jahmyr Gibbs and offensive linemen Taylor Decker and Frank Ragnow remain out, and Kevin Zeitler did not practice Wednesday.

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What about the backup QB?

Hooker had another mixed day in his quest to be Jared Goff's backup, but I thought it was his best day of the four open practices we've seen this spring.

Hooker was sharp through most of team drills, competing 8 of 10 passes before his interception. He threw touchdowns to James Mitchell and Maurice Alexander in tight red zone work and heaved a bomb to Davis for a long score on his first play with the third-team offense.

Hooker's accuracy can be hit and miss at times, like on his pick, but his biggest problem remains his processing speed, a common issue for young quarterbacks getting acclimated to the NFL. Hooker took would-be sacks from Levi Onwuzurike and Nate Lynn when he didn't appear to recognize the blitzing defenders, and he made his biggest gaffe in situational work when he completed a pass over the middle of the field in a late-clock situation.

The Lions started that situation in a first-and-10 from the 40-yard line, trying to gain yards for a field goal attempt. Hooker showed good awareness in scrambling for 6 yards on the first play of the series, when the defense dropped all 11 men in coverage. Then, with 8 seconds on the clock, threw a pass over the middle to Jermar Jefferson, much to the dismay of offensive coordinator Ben Johnson. Jefferson would have been tackled in-bounds, leaving no time on the clock.

I don't know if Hooker thought he had a timeout — when I looked at the scoreboard at the start of the situation, I thought it showed one timeout for the offense. But Johnson's vocal reaction to the throw clearly indicated Hooker misread the play.

Just for kicks

There remains a lot of intrigue in Michigan Panthers kicker Jake Bates, but the Lions might have their kicker of the future already on the roster in ex-Michigan football leg James Turner.

Turner was perfect in situational kicking Wednesday, making field goals of 56, 55, 47, 52 and 34 yards, and several of those kicks sailed high through the uprights and would have been good from well beyond 60 yards.

Turner has a hammer of a leg and could push incumbent Michael Badgley for the kicking job come training camp. Badgley missed his kicks from 56 and 55 yards wide left Wednesday.

Quick strikes

One more observation from the Lions' situational work: In a three-play sequence with a first-and-10 from the 16-yard line, down six points with 15 seconds on the clock, Jared Goff completed a quick out to Williams for a 6-yard gain, then threw incomplete out of the back of the end zone when he got rid of the ball to avoid a blitz. On third-and-4 from the 10, Goff threw a prefect pass to St. Brown for a touchdown, splitting Arnold and linebacker Jack Campbell.

St. Brown celebrated by heaving the ball high in the air, while Arnold looked around bewildered as if he was waiting for help.

Williams made a big catch at the end of seven-on-seven, too, one play after a ball bounced off his facemask or shoulder pad on a pass over the middle. Williams mimicked throwing a pass interference flag on Amik Robertson on the non-catch, then beat tight coverage by Davis for his long gain. Like St. Brown, he celebrated by firing the ball to the sky - and some 40 yards downfield towards the trees at the east of one of the outdoor practice fields.

Last note of the day: Lions owner Sheila Hamp made her second straight appearance at minicamp.

Contact Dave Birkett at dbirkett@freepress.com. Follow him on X and Instagram at @davebirkett.

This article originally appeared on Detroit Free Press: Detroit Lions observations: Making sense of battle for backup WR jobs