The Tampa Bay Buccaneers spent the top of the 2026 NFL Draft trying to make their defense younger and more disruptive. Their first regular-season depth chart shows how quickly that plan has moved from theory to responsibility. First-round outside linebacker Rueben Bain Jr. and second-round linebacker Josiah Trotter are both listed as starters for Sunday’s opener against the Cincinnati Bengals.
Bain’s place in the lineup has been expected for much of the summer. Tampa Bay listed him with the first group on the preseason depth chart opposite Yaya Diaby. Trotter’s rise is the more significant change. He began the preseason behind SirVocea Dennis at the Mike linebacker spot and has now moved to the top line next to veteran Alex Anzalone.
If both rookies take the opening defensive snap in Cincinnati, the Buccaneers say they will become the franchise’s first rookies to start on defense since Calijah Kancey in 2023. More important than the trivia is the opponent. Joe Burrow, Ja’Marr Chase and Tee Higgins will provide no gentle introduction to regular-season football.
The Bucs drafted Bain and Trotter to change the personality of the defense
Tampa Bay used the 15th overall pick on Bain after evaluating him as one of the most disruptive front-seven players in the class. The team’s post-draft material noted that he led the FBS with 83 pressures during his junior season at Miami. His game is built around power, leverage and the ability to collapse the edge rather than simply running around tackles.
That skill set fits Todd Bowles. The Buccaneers want pressure that does not require the defense to sacrifice structure on every passing down. If Bain can win enough individual matchups, Bowles has more freedom to disguise where additional rushers are coming from and keep coverage resources behind them.
Trotter gives the defense a different kind of physicality. Tampa Bay’s personnel staff described him after the draft as an old-school downhill Mike linebacker with strong run instincts and blitzing ability. The question was whether he could prove versatile enough in coverage to stay on the field for all three downs. Winning the starting job suggests the coaching staff is comfortable enough with that part of his game to test it immediately.
Josiah Trotter winning the Mike job matters structurally
Inside linebacker is not only a tackling position. The Mike often carries communication responsibility, helps set the front and has to process formation changes before the snap. A rookie earning that role by Week 1 says something about how quickly the coaches trust his command.
There is also a personnel ripple. Trotter’s move ahead of Dennis gives Tampa Bay a more physically aggressive pairing with Anzalone. That can help against the run and on pressure downs, but Cincinnati will immediately stress the coverage portion of the job with backs, tight ends and route combinations designed to isolate linebackers in space.
The Bengals are exactly the kind of opponent who can reveal whether a rookie is thinking fast enough. Burrow gets the ball out quickly when he identifies leverage, and the presence of Chase and Higgins forces safeties to respect the perimeter. If Trotter hesitates on an underneath assignment, Cincinnati can turn a short completion into a chain-moving play.
Rueben Bain Jr. has a more obvious Week 1 assignment
Bain’s job is simpler to describe even if it is difficult to execute: affect Burrow without creating escape lanes or losing run discipline. Rookie edge rushers often learn quickly that NFL tackles are better at surviving the first move. Power that dominated college blockers can stall if it is not paired with counters and hand usage.
Tampa Bay liked Bain because his college tape already showed more than one way to win. The team praised his heavy hands, bull rush and ability to play from different stances. Bowles can use that versatility to reduce predictability, especially on third down.
The most useful Week 1 outcome may not be a multi-sack game. If Bain consistently compresses the edge and forces Burrow to move off his preferred spot, he can create opportunities for Diaby and the interior rush even without finishing the play himself.
The timing raises the ceiling and the risk at the same time
Starting two rookies gives Tampa Bay more athletic upside, but it also creates two places Cincinnati can test for communication and recognition. Veteran offenses search for those pressure points. They use motion, tempo and formation shifts to make young defenders declare what they know before the snap.
That does not mean Bowles should protect the rookies with a simplified game plan. One reason to start talented young players is to use the traits that won them the jobs. The better approach is to surround them with clear communication from veterans such as Anzalone, Vita Vea and Antoine Winfield Jr. so the rookies can play fast rather than cautiously.
The draft class can change how Tampa Bay builds the next few years
The Buccaneers already committed their largest offseason decision on offense by extending Baker Mayfield. The defensive side of the roster now has to supply enough young, affordable impact talent to keep the team balanced around that veteran core.
Bain and Trotter are central to that equation because premium draft picks provide the most value when they become meaningful contributors before their second contracts. If both establish themselves early, Tampa Bay can allocate future cap dollars and draft resources with more flexibility. If either position remains unsettled, the team may have to spend again sooner than planned.
This is why Week 1 is more than a nice rookie story. It is the first real evidence point for the Bucs’ 2026 defensive investment.
Cincinnati will test the exact areas rookies usually struggle with
The Bengals can force Bain to defend both run and pass from similar looks. They can make Trotter carry routes through traffic, communicate against bunch formations and react to Burrow’s pre-snap adjustments. Chase and Higgins, both trending toward playing, will stretch coverage resources outside and leave less help available for mistakes in the middle.
That is a difficult assignment, but it is also useful. Tampa Bay will learn immediately whether its rookies can function when the offensive quarterback is capable of identifying and attacking hesitation.
What to watch in Week 1
For Bain, watch how often Tampa Bay lets him rush one-on-one rather than manufacturing pressure around him. That will show how much confidence Bowles has in his ability to create disruption on his own. Also watch his early-down run fits; staying disciplined will be just as important as chasing sacks.
For Trotter, watch communication and third-down usage. If he stays on the field in obvious passing situations, that will be a stronger endorsement than merely taking the first snap. His ability to carry underneath routes and close throwing windows will determine whether Cincinnati can target him repeatedly.
The Buccaneers drafted both players because they wanted a defense with more speed, force and long-term upside. Week 1 will not settle whether the plan worked, but it will reveal how quickly Tampa Bay is willing to live with the growing pains. The answer, based on the first depth chart, is clear: the rookies are not waiting behind veterans. The Bucs are putting them in the middle of the season from the very first game.