The Buffalo Bills are switching to a 3-4 defense, and that change has already created a logjam at linebacker. The guy causing it? A fourth-round rookie nobody had pegged for this kind of spring.
Kaleb Elarms-Orr has quietly turned heads during OTAs and mandatory minicamp, putting himself in the mix for a starting job. The Bills brought him in as a developmental prospect, but he’s been running with the first-team defense while veteran Dorian Williams sits out with an unspecified lower-body injury. Williams has been sidelined for the entire spring, which opened the door for Elarms-Orr to get a long look.
And he’s made the most of it. According to ESPN’s Alaina Getzenberg, defensive coordinator Jim Leonhard told reporters in May that Elarms-Orr is doing everything the staff has asked. That’s not a throwaway line from a coach. For a rookie adjusting to an entirely new scheme, it means something.
The schematic shift that changed everything
Leonhard’s 3-4 system is built for bigger, downhill linebackers who can take on blockers and fill gaps. That’s a departure from what Sean McDermott ran for years, which favored quicker, smaller players who could cover sideline to sideline. Last year’s starter Terrel Bernard fits the old mold more than the new one. He’s listed at 224 pounds, which is light for a 3-4 inside linebacker. The staff hasn’t said publicly whether Bernard will need to add weight or if his role will change, but his position is no longer a lock.
Elarms-Orr is 6-foot-2 and 235 pounds, built more like the prototype Leonhard wants. He’s also shown a natural feel for communicating pre-snap adjustments, which is rare for a rookie in May. That comfort level in the huddle has caught the coaching staff’s attention, especially with Leonhard’s playbook being more aggressive than Buffalo’s previous defense.
What happens when the pads come on?
The real evaluation starts at training camp. Right now, everything is in shorts and helmets. Nobody’s hitting. But Elarms-Orr has earned the right to compete for real reps when contact starts. Williams will need to get healthy fast or risk falling behind. Bernard has to prove he can hold up in the new scheme. The Bills haven’t committed to anything publicly, but the depth chart is clearly fluid.
This wasn’t the plan coming out of the draft. Buffalo had Bernard and Williams penciled in as the likely starting duo, with Elarms-Orr as a rotational piece or special teams contributor. Instead, the rookie is pushing for more. The Bills’ linebacker room just got a lot more interesting heading into August.

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