The Denver Loss Wasn't Bad Luck. The Numbers Say Buffalo Has a Structural Problem That Still Isn't Fixed.

Start with 63%. That's the rate at which the Buffalo Bills won games decided by a touchdown or fewer last season — 5 of 8. Their overall winning percentage was 71%. That 8.1-percentage-point gap between how they performed in close games versus all games isn't a rounding error or a one-bad-night anomaly. It's a pattern, and it showed up exactly when it mattered most: a three-point wild-card loss to Denver that ended a 12-5 season in the first weekend of January.

I wrote last week about the Pythagorean problem lurking underneath Buffalo's record — that their actual 71% winning percentage outpaced their point-differential expectation of 66% by nearly five percentage points, suggesting the Bills won more games than their underlying performance warranted. That's the macro view. The close-game number is the micro confirmation. When you overlay both findings, what you get is a team that was simultaneously outperforming its aggregate scoring margin AND losing the games most sensitive to execution. The regular season papered over the cracks. Denver ripped them open.

The question heading into training camp is whether the offseason has done anything to address the specific vulnerabilities that make close games dangerous for this team. The honest answer, looking at the roster, is: not meaningfully. The defensive line — the unit most responsible for late-game stops — remains a genuine structural hole. Mike Danna produced at just 51% of league median at defensive end last season, and there is no viable depth behind him with observed playing time. Ed Oliver at defensive tackle checked in at 48% of league median, again with no quality rotation player behind him. In a game decided by three points, the margin between a stop and a first down is exactly the kind of production gap those numbers represent.

The Bills' offseason moves have been sensible but modest in scope. Retaining Dawson Knox on a renegotiated deal keeps a reliable option in the passing game — Knox caught 42 of 57 targets for 479 yards and four touchdowns last season, and his presence matters for the kind of methodical late-game drives that win close contests. Claiming Quentin Skinner off waivers adds a body to a wide receiver room that desperately needs it, given that the depth behind DJ Moore — who is on an expiring contract — currently sits at 8% of league median at the backup level. Those are real additions. But neither move touches the defensive front, which is where the structural fragility lives.

The linebacker rotation compounds the concern. Only two linebackers logged meaningful playing time last season, below the typical three-player rotation that gives a defense the flexibility to manage late-game situations without fatigue dictating personnel. Close games in the fourth quarter are won and lost on exactly this kind of depth — the ability to rotate fresh legs onto the field when the opponent is grinding for a go-ahead score. Buffalo's current construction doesn't suggest that capacity has improved.

Josh Allen is, by any reasonable measure, the best quarterback in football right now — the league's own rankings put him at the top for good reason, and his 4,224 passing yards, 29 touchdown passes, and 16 rushing touchdowns last season back that up. But Allen's singular talent has a way of making Buffalo's underlying roster issues invisible until a close game forces them into the light. Denver forced them into the light. The Bills went home. My read is that the front office has until the season opens to decide whether the Knox retention and the Skinner waiver claim represent a philosophy — trust the core, add at the margins — or whether the defensive line numbers eventually demand something more aggressive. The box score from January already cast its vote.