The Bills Won 12 Games Last Season. The Numbers Say They Shouldn't Have Won Quite That Many.

Start with this: Buffalo's actual win percentage in 2025 was 71%. Their Pythagorean expectation — the win rate their point differential actually supported — was 66%. That 4.8-point gap doesn't sound catastrophic until you understand what it typically predicts. Teams that consistently outscore their Pythagorean expectation are borrowing wins from the future. The margin between what Buffalo looked like and what Buffalo was is the central question the front office needs to answer this offseason.

The close-game record makes the same argument from a different angle. In games decided by 7 points or fewer, the Bills went 5-3 — a 63% win rate against a 71% clip in all other contexts. That 8-point gap is where the 12-5 record gets complicated. Close games are the highest-variance environment in football; they are decided by a tipped ball, a coverage bust, a field goal trajectory. Buffalo navigated that environment reasonably well, but not as well as the headline record implies. And then came Denver in the wild-card round — a 33-30 loss that looked almost exactly like the profile those numbers were warning about. When the margin shrinks to its minimum, the Bills have not been the team their aggregate performance suggests.

Here is why that matters structurally: the defensive front that is supposed to hold leads in tight moments is operating well below league standard. Mike Danna, the team's primary edge presence, produced at roughly 51% of the league median for his position last season. Ed Oliver at defensive tackle came in at 48% of median. Those aren't depth concerns — those are starter concerns. And behind both players, the depth chart shows essentially no observed production from anyone else at either spot. A defense that can't generate consistent pressure in the fourth quarter of a one-score game is a defense that turns Pythagorean debt into actual losses.

The receiver depth compounds the problem. DJ Moore is on an expiring contract, and the drop from Moore to Trent Sherfield behind him is severe — Sherfield logged just 8% of a league-median starter's production. The Bills claimed Quentin Skinner off waivers from the Jets this week, which tells you something about where the receiving room stands heading into camp. Skinner's showcase was apparently a late-season game that meant nothing in the standings. That is the current answer to a high-priority roster need.

My read is that Buffalo's front office faces a specific kind of offseason trap: a 12-5 record creates the political conditions for incremental moves when the underlying numbers are calling for something more aggressive. The core — Josh Allen, James Cook III, Khalil Shakir, Dalton Kincaid — is genuinely good. Allen's 29 passing touchdowns and 16 rushing scores make the "most unstoppable QB" framing earned, not promotional. But Allen's contract situation itself carries a moderate flag, and a team that outperformed its point differential by nearly five percentage points of win rate cannot simply assume the same fortune repeats. The Bills need a pass rush that manufactures pressure in the fourth quarter of January games, and right now the depth chart doesn't show one. That is the number that should be driving this offseason, not the one on the win column.