In the third series, I couldn't help but notice that the guy was snapping the ball to Pennington didn't have a ponytail. A quick look at the line revealed that the guard to the right of him did. Miami had moved Satele to right guard, insterted a Dallas guy at center, and moved Ndukwe to the bench.
I looked at Ndukwe parked there and thought he was being taken out for some reason, not because of injury, maybe poor peformance?
After the game, I watched it on Tivo, and realized that in fact the problem was that the line was playing pretty poorly as a unit on the first few series. Yes, Pennington had a nice pass to get a TD, but that was in spite of the line play. The coaches made a decision to shuffle the line to try and get more out of them.
They had talked about shuffling during the week apparently, and decided to try it out when what they had wasn't working.
It was slightly better, but on the whole, I don't think they were too impressed. They put it back to the starting unit a couple of series later.