James Cook Says the Bills Feel Different Now. Joe Brady Is the Reason.

The Buffalo Bills are walking into training camp with a new stadium almost ready, a young head coach, and a running back who isn’t afraid to say the vibe has shifted. That running back is James Cook, and he recently told NFL Network’s Good Morning Football that the energy in the building is noticeably different with Joe Brady taking over for Sean McDermott.

“It’s just a new energy in the building,” Cook said Tuesday. “It’s going to always be like that, I feel like, when you have a new head coach coming in — a young one, too, at that. I mean, Joe’s a young head coach coming in, his first year being a head coach. He’s got a new energy. That’s what I feel like.”

Cook was careful not to throw any shade at the old regime. He just described what he’s seeing and feeling. Brady, the former offensive coordinator who took over play-calling midseason in 2023, has been around the building long enough that the transition isn’t jarring. “To me, nothing has changed,” Cook added. “Joe’s going to be Joe. He’s going to be himself. He just wants you to play football and have fun.”

New Stadium, New Coach, Same Super Bowl Window

The Bills open their brand-new stadium in 2026, and the roster is built to win now. Josh Allen is still Josh Allen. The AFC East isn’t exactly a gauntlet. And the conference as a whole feels more open than it has in years, with the Chiefs looking mortal last season and the Bengals fighting to stay healthy.

What’s interesting about Cook’s comments is the subtext. A lot of players talk about “new energy” when a coach gets fired and replaced. It’s almost a cliché. But Cook isn’t the guy who usually says stuff like that. He’s quiet. He lets his legs do the talking. So when he goes out of his way to mention the shift, it’s worth paying attention to.

Training camp starts for the full team around July 28, with rookies reporting a week earlier. That’s when we’ll start seeing whether this new energy translates to the field. But the early read from the locker room is positive. Nobody’s predicting a Super Bowl in July, but the Bills look like one of the more confident teams in the AFC right now.

The pressure is on Brady, obviously. He’s never been a head coach at any level. But he’s got Allen, he’s got Cook, and he’s got a roster that’s been close before. Sometimes a fresh voice is all it takes.