Joey Bosa is going back to where it all started — at least schematically.
After eight seasons with the Los Angeles Chargers, Bosa is preparing for a fresh start with the Buffalo Bills, and one of the biggest changes won’t be the jersey — it’ll be the defensive scheme.
For most of his time with the Chargers, Bosa was deployed in a 3-4 defense as a stand-up outside linebacker. But with Buffalo, the 29-year-old edge rusher is returning to a familiar 4-3 system — the same alignment that made him a star at Ohio State and during his early years in the NFL.
Los Angeles Chargers 3-4 Defense Never Suited Joey Bosa’s Strengths
“I think going back to this 4-3 [defensive formation] that I played in college, and played early on in my career, is exciting for me,” Bosa told reporters at Bills minicamp. “No more outside linebacker. I’m ready to get my hand in the dirt. Get back to the 6 technique and rush the passer.”
It’s a notable shift for a player who’s been one of the league’s most effective pass rushers when healthy. During his first four seasons (2016–2019) — most of which were played in a 4-3 front — Bosa tallied three double-digit sack campaigns. The physical tools have never been in question, and the system fit in Buffalo could help unlock some of that old explosiveness.
And while the Bills may not need Bosa to be an every-down force, his role in passing situations could be pivotal as they look to finally get past Patrick Mahomes and the Kansas City Chiefs in the AFC playoff picture.
But first, Bosa has to get back to full strength.
The four-time Pro Bowler is still recovering from a calf injury that has limited him during offseason workouts. While he hasn’t been a full participant, he’s doing what he can to stay mentally sharp and keep pace with his new teammates.
“I’ve been doing my best to get mental reps in there,” Bosa said. “I’ll have plenty of time. I’ve got all the notes and playbook, so I’ll have plenty of time to brush up on all that the next two months.”
Buffalo signed Bosa to help bolster a defensive front that’s long been built on depth and rotation. The expectation isn’t for him to carry the full load — it’s to be a situational weapon who can get after the quarterback when it matters most.
If Bosa can stay healthy and regain the form he showed in a more traditional pass-rushing role, the Bills could have added a major difference-maker at just the right time.
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