Feeley took over in the second quarter and struggled even more. He finished 4-of-17 for 56 yards and an interception that was returned 51 yards by safety Etric Pruitt to give Atlanta a 13-0 lead.
Helped by two personal foul penalties, Feeley was able to direct a field goal drive at the end of the half, with Olindo Mare's 28-yarder making the score 13-3 heading into the locker room.
Rosenfels' two touchdown passes went to Derrius Thompson, who had a big night, and Wes Welker. The second came on the first play after the two-minute warning and the outcome pretty much was sealed when Atlanta recovered the ensuing onside kick.
Thompson's touchdown made it 13-10 early in the fourth quarter, but Atlanta came right back with an 80-yard drive that ended when running back DeAndre Cobb bounced off tackler after tackler on his way to a 29-yard touchdown run.
Dolphins top pick Ronnie Brown played throughout the first half and carried the ball five times for 25 yards, including a 16-yard run that gave the Dolphins their initial first down of the game with about four minutes left in the second quarter.
On the flip side, the Dolphins had their problems with the Atlanta running game, giving up 196 yards and a 4.4 average.
But the big story on Thursday night was the play of the quarterbacks, and it was nothing short of ugly.