The problems against the Jets began with the special teams, which were the biggest reason the Dolphins trailed 21-13 at halftime despite dominating on offense and defense.
And then the defense fell apart in the second half, as it did in the first two games of the regular season.
The defense allowed drives of 13 and 15 plays on New York's first two possessions of the second half, sandwiched around an ill-advised Trent Green interception, as the lead increased to 31-13.
The breakdowns on special teams and defense unfortunately overshadowed a breakout game by the offense — and Ronnie Brown in particular.
Coach Cam Cameron fed Brown the ball regularly throughout the game and Brown responded by falling one receiving yard short of becoming the first player in team history to have 100 yards rushing and 100 yards receiving in the same game. Brown also scored all three Dolphins touchdowns and even had a two-point conversion that made the score 31-21.
His last touchdown made it 31-28, but the Dolphins needed to recover an onside kick to have a chance and they weren't able to pull that off.
But on the ensuing kickoff, the Dolphins let Leon Washington run almost untouched 98 yards for a touchdown that quickly gave the Jets the lead back.
The only player who got a hand on Washington on the play was kicker Jay Feely, and it was a diving one-handed attempt at that.
The Dolphins then got two field goals to close the Jets' lead to 14-13 with inside of two minutes left in the half.
Cameron, probably fearing another long kickoff return, had Feely squib the ensuing kickoff, but Chris Baker's 13-yard return after he got the ball at the 30 set the Jets up at their own 43.
Seven completions later, the Jets had a touchdown, a 2-yard pass from Pennington to Baker with two seconds left in the half.