DAVIE, Fla. — Before agreeing to become the head coach of the Miami Dolphins last winter, Brian Flores consulted his former high school coach in Brooklyn. The response was, sure you’ll have to face New England twice a year, but even Bill Belichick has to retire at some point.

“They won’t be great forever,” Dino Mangiero, who coached Flores at Poly Prep Country Day School, advised him. “Miami might be a really good place to land.”

And at some point for Flores, it might be. It is impossible to judge an N.F.L. head coaching career that consists of two games with a franchise that has gutted its veteran talent and is rebuilding with fragile youth and the hoarding of draft picks.

But after losing to New England by 43-0 on Sunday — the Super Bowl champion and A.F.C. East rival for whom Flores worked the previous 15 seasons — the winless Dolphins have been outscored in two games, 102-10. The team might not be merely bad, but historically futile.