Unbeaten NFL teams show strengths but reveal clear vulnerabilities
On 22 October 2026, several unbeaten NFL teams — including the San Francisco 49ers, Kansas City Chiefs and Minnesota Vikings — drew scrutiny as analysts examined whether their early-season records conceal significant weaknesses.
San Francisco arrived at this point despite a difficult offseason: head coach Kyle Shanahan’s participation in training camp was limited after a serious car crash, team owner Jed York’s visit to an Ohio trailer park “did not end well,” and the roster has suffered multiple serious injuries. The 49ers sit atop the NFC West and have an intense defense led by safety Malik Mustapha and Fred Warner, while Brock Purdy’s record-setting quarterback rating and accurate downfield passing have powered the offense. Still, the team’s injury list and roster instability temper the optimism around their unbeaten start.
Those injury concerns are concentrated at receiver: the 49ers have four wide receivers on injured reserve and Brandon Aiyuk is described as being in self-imposed exile. Mike Evans, described in the article as a future Hall of Famer and 33 years old, left Monday’s win over the Washington Commanders with achilles pain and fractured ribs; he caught three passes for 94 yards in that game and San Francisco were cruising at half-time, but without him the offense went three-and-out three times and only just hung on to beat the Commanders. The three-game lead the 49ers have in the NFC West should see them walk into the playoffs, yet the piece concludes the team is “not quite the real thing” if Purdy cannot find healthy, reliable targets.
Kansas City recovered from a 6-11 finish last season to open this campaign unbeaten, with the AFC West already appearing sewn up in part because of the Los Angeles Chargers’ implosion. Patrick Mahomes has returned from the ACL tear he suffered in 2025 and the Chiefs bolstered their running game by acquiring Kenneth Walker III after last season’s rushing attack averaged 4.2 yards per carry. Walker was signed for $14.35m a year — the article states he is the ninth-most expensive running back in the league — and had 665 rushing yards entering Week 7 while Kansas City averaged 5.5 yards per carry as a team; Walker already had seven carries of more than 20 yards compared with the Chiefs’ three such runs all last year. The one caveat noted is that Walker’s production has come against a soft early schedule, and the piece highlights a Sunday night test against his former employers.
Minnesota’s early form has relied on defence to grind out results, and the article notes they became the first team to go 4-0 while not scoring an offensive touchdown in multiple games since the Detroit Lions in 1934, with those scoreless offensive wins coming against Miami and Chicago. The Vikings showed offensive signs of life in a 23-13 victory over the Saints before the bye week, when Kyler Murray completed 80% of his passes for 229 yards and produced a touchdown to Justin Jefferson in triple coverage. Brian Flores’s blitz-heavy scheme, led on the edge by Dallas Turner and with linebacker Blake Cashman, has conceded just five touchdowns so far; the article states, without hedging, that Minnesota “aren’t one of the best defenses – they are the best.”
Buffalo, despite one loss, is described as the best of the rest thanks largely to Josh Allen’s play; the Bills lead the league in scoring and four of their five wins have been shootouts. Their defense, however, has been porous in yardage terms, having allowed 386.8 yards per game — the most in the league aside from the Lions according to the article — and their performance on third down has deteriorated after a poor start. The piece cites an NFL average of about 40% for stops on third down, notes Detroit converted 36% on third downs against Buffalo in Week 2, and reports the Raiders had 58% third-down success against Buffalo last Sunday. The article judges Buffalo “not the real thing” unless fundamentals on defence improve.
The wider league picture includes several struggling and inconsistent teams: the Jets’ three first-round picks are owned by 2-4 teams — the Colts, Cowboys and the Jets themselves — and those assets sit among a group of franchises with two wins. The Philadelphia Eagles are named among nine teams on two wins while dealing with an ongoing saga over Jalen Hurts’s blood clots that has made Tanner McKee the starting quarterback and left the club with a large injury list; the article allows that they could be in play for the No 1 pick by the season’s end. It singles out the winless Chargers and Dolphins as more likely to pick first in 2027, calls Miami the “solid choice” to pick first given an otherwise abysmal offense apart from one fluent quarter against the Cincinnati Bengals, and states that Sunday’s matchup will probably highlight the gulf between the Jets and the Dolphins.
The article concludes by pointing to immediate tests: the Chiefs face Kenneth Walker’s former employers on Sunday night, the Jets meet the Dolphins on Sunday, and San Francisco’s three-game lead in the NFC West projects them toward the playoffs if their current standing holds.