Newton led the Panthers to two touchdowns and a field goal in his three possessions before exiting with 1:12 left in the first quarter along with most of the other starters.
"Last week I felt kind of rushed," Newton said. "Coach (Ron Rivera) told me I wasn't going to be in that long and I kind of panicked to a degree. I didn't let the game come to me. Today I knew I had a lot more time to work and when you know that you're in there for longer than a couple of series you try to let the game come to you."
Newton got plenty of help Friday night.
He played the entire first half and led six possessions -- four of which ended in three-and-out. He found himself under heavy duress for most of the game as the Panthers sacked him three times and batted down three balls at the line of scrimmage.
He finished 11 of 23 for 100 yards passing.
"We're this close," Tannehill said, holding his finger and thumb a half-inch apart. "It's so close, and it's frustrating, but you can get past it. It's a preseason game, and you're that close. If we can go out and cut back one mistake each drive, we'll be moving the ball down the field and scoring points."
"We're going to watch the tape, take a good hard look, and see where we are," Philbin said.
Matt Moore didn't do anything to help his own cause. He completed 5 of 15 passes for 57 yards. Fourth-stringer Pat Devlin made the best of his limited action with a 6-yard touchdown pass to rookie Rishard Matthews. Devlin had a chance to win the game but his final pass was intercepted in the end zone by R.J. Stanford with 4 seconds left in the game.
Newton didn't run at all this game -- he didn't need to -- but found plenty of open receivers.
A 39-yard pass interference penalty on Miami cornerback Sean Smith led to Carolina's next score as Newton rolled out and found Williams for a 9-yard touchdown pass. Williams caught the ball in stride, raced around right end and dived to get the ball inside the pylon for a 17-0 lead.
Philbin isn't pleased with the play of his defense through two games.
"Our biggest concern is getting off the field," Philbin said. "We haven't stopped anybody yet. We haven't gotten off the field on third down, we haven't tackled real well. We haven't had a lot of pass rush. I guess I'd better stop there."
Copyright 2012 by The Associated Press