I mean you could technically consider most, if not all, teams inferior to the Bills, as even before the season they've been heralded as Superbowl favorites and have finished as the 2* seed in the AFC.
Every team they play against is giving maximum effort to get up for the Bills this season. The mistakes they're making are certainly frustrating but that's on the players moreso than the coaches. It's predominantly execution error rather than play calling that's the main issue. McDermott might not always challenge the plays that you want or call inopportune timeouts, but no coach is perfect.
To say that the coaching is an issue disregards the fact that they've won 13 games this year and were a cancelled game away from the 1 seed which was the goal for the regular season. Despite all of the adversity they faced.
At this point it's a new season and the Bills are 1-0 playing against a division rival with a ton of bad blood. I'd imagine that the Dolphins know the Bills better than any other team in the league.
There's so many factors that go into each game and every week presents new challenges, and I'm confident that the Bills can weather any storm and will be in a position to win every game they're in