Fans always overrate the talent of their teams. The fact of the matter is that NFL teams are pretty much equal across the board year after year from a talent standpoint. The only differences (in order):
1. Quarterback
2. Injuries/luck
3. A handful of difference-makers at the other positions (your Von Miller's, JJ Watt's, etc.)
4. Coaching
So being "#2 behind Seattle with the talent on this roster" - even if that's true (doubtful) - doesn't mean a damn thing unless you excel in one (or more) of the four factors above.