Isaac TeSlaa’s rookie season gave Detroit Lions fans a taste of what made the organization trade up to draft him.
The one-handed catches were spectacular. The red-zone production was real. Six of his 16 receptions went for touchdowns.
Dan Campbell now wants the second-year receiver to prove there is much more underneath the highlight reel.
“It has to be more growth. It can’t only be the one-handed catches down the field. He has to expand his route tree and improve in those areas. That’s part of the growth going into Year 2,” Campbell said.
TeSlaa has reportedly endured a slower start to his second training camp, particularly during competitive one-on-one periods. Campbell does not sound discouraged. He sounds like a coach pushing a talented young player through the uncomfortable stage between being dangerous in a specific role and becoming dependable across the entire field.
Isaac TeSlaa’s Rookie Season Created Real Expectations
TeSlaa was not a high-volume receiver during his first NFL season.
He appeared in all 17 games, started three and caught 16 of his 27 targets for 239 yards. His 14.9 yards per reception showed his ability to create chunk plays, but his six touchdowns made him unusually productive near the goal line.
Five of those touchdowns came from inside the opponent’s 20-yard line. Fourteen of his 16 receptions produced first downs, another sign that Detroit used him in specific high-value situations rather than feeding him routine targets.
His six touchdown receptions tied for second among NFL rookies and matched the second-highest total by a rookie wide receiver in Lions history. He also led qualifying NFL receivers with touchdowns on 37.5 percent of his catches.
That is a remarkable conversion rate.
It is also not a sustainable offensive identity by itself.
Detroit needs TeSlaa to become the receiver who helps move the ball between the 20s, not only the player Jared Goff looks for when the field shrinks.
Campbell Wants More Than Highlight-Reel Catches
TeSlaa’s size, catch radius and body control made him an immediate target on contested throws.
Campbell appreciates those gifts. He does not want them becoming a ceiling.
“He’s smart, he works his tail off and he’ll block in the running game. Now, some of the growth is about his work at the line of scrimmage. Some of it is about what he does at the top of the route, whether it’s a dig, a slant or something else. That’s the next progression,” Campbell said.
That next step begins before the ball is thrown.
Can TeSlaa defeat press coverage cleanly? Can he create separation without relying on his size? Can he sell one route before breaking into another? Can he arrive at the top of his route under control and give Goff a clear throwing window?
Those details separate a situational weapon from a complete NFL receiver.
Detroit already knows TeSlaa can make difficult catches. The Lions want him to make routine catches easier by improving everything that happens before the football arrives.
Lions Believe TeSlaa Can Run the Entire Route Tree
Campbell rejected the idea that TeSlaa should be permanently labeled as a vertical specialist or red-zone target.
“We don’t see him as a player who can only do one thing. With every player, we identify what they excel at and ask them to do a lot of those things. We see more than that with him. We think he can run the entire route tree. He just has to work through it every day like everybody else,” Campbell said.
That belief matters because Detroit’s receiving hierarchy does not offer many easy opportunities.
Amon-Ra St. Brown owns the middle of the field. Jameson Williams threatens defenses at every level. Greg Dortch brings experience in the slot and return game. TeSlaa must create his own lane inside a talented offense.
His size gives him a natural advantage. His blocking helps keep him involved when Detroit runs the football. His touchdown production proved he can reward Goff’s trust in tight spaces.
A more complete route tree would force defenses to treat him as something more complicated.
Once a cornerback must respect the slant, dig, comeback and fade, TeSlaa’s physical tools become much harder to handle.
Campbell Compares TeSlaa’s Technical Funk to Golf
Campbell’s most revealing comments focused on the mental side of technical development.
“There are some things happening right now, even in the one-on-one work. When you’re a young player and you get into technical details, it can be a lot like golf. When the technique is right, everything feels perfect and you’re in the flow,” Campbell said.
“Then one thing gets slightly off, you fall into a little funk and start trying to solve the issue. You change your swing a little, correct it the wrong way and make things worse. That’s part of the process for young players. There’s a little bit of that with him right now.”
Anyone who has played golf knows the feeling.
One mechanical problem leads to three attempted fixes. The player starts thinking about every movement. What once felt natural suddenly becomes crowded with instructions.
Receivers can fall into the same trap.
A poor release leads to an adjustment with the hands. That adjustment affects the feet. The route loses timing. The player presses harder on the next repetition, and the original issue grows.
Training camp is where Detroit wants that struggle to happen.
Not in Week 1. Not on third-and-7. Not when Goff expects TeSlaa to be at a precise spot and the route arrives half a second late.
Detroit Is Betting on TeSlaa’s Work Ethic
Campbell repeatedly returned to the same reason for optimism.
“He’s working, and Scotty is working with him. He’ll get there. The guy works his tail off. That’s what practice is for,” Campbell said.
That is the encouraging part for Detroit.
TeSlaa’s early camp struggles do not appear to come from conditioning, effort or a failure to understand the offense. They come from a young receiver trying to sharpen the technical details required to handle a larger assignment.
Those issues can be coached.
Scottie Montgomery and Detroit’s offensive staff can drill releases, footwork and route stems. TeSlaa must absorb the instruction without allowing every correction to create another problem.
His rookie season already proved he belongs in the league.
Year 2 is about proving how large his role can become.
TeSlaa Cannot Live on Touchdown Efficiency Forever
Six touchdowns on 16 catches made TeSlaa one of the NFL’s most unusual rookies.
Nearly every time he touched the ball, something meaningful happened.
Detroit would happily take another six touchdowns. The coaching staff also wants more than 16 receptions and 239 yards from a receiver it moved up to select with the 70th overall pick in 2025.
The path to that production is not necessarily more deep shots.
It is becoming useful on ordinary downs.
A well-run slant on first-and-10. A dig route that beats zone coverage. A comeback that gives Goff an answer against an aggressive corner. A clean release that keeps the timing of the offense intact.
Those plays rarely dominate social media.
They build careers.
Bottom Line
Isaac TeSlaa’s rookie season showed the Detroit Lions exactly why they believed in his upside.
He caught only 16 passes, but six became touchdowns. He produced first downs, won in tight spaces and delivered the kind of one-handed catches that instantly grab attention.
Dan Campbell is now asking for the less glamorous work.
Better releases. Sharper breaks. More routes. Greater consistency.
TeSlaa is experiencing a technical funk during his second training camp, but Campbell believes his intelligence and work ethic will pull him through it.
The Lions already know TeSlaa can make the spectacular play.
Year 2 will reveal whether he can become the complete receiver they believe is hiding underneath it.
