I think the stagnation you're referring to is more a result of some weird injury timing. They clearly felt in TC that their best combo was Wynn-Onwenu-Andrews-Mason-Brown, with Karras as the super sub. That was the lineup in week 1 (well, PLAY 1 at least), and then Brown got hurt. I think at the time they thought Brown would be back really soon, and so they figured why reshuffle the line, only to shuffle it back in a week. Unfortunately, Brown had some kind of set back and that didn't happen. Eventually, they moved Onwenu to RT and Karras to LG, and things solidified, so by the time Brown came back they just made the 1-to-1 swap back Brown for Onwenu. They've been riding that since, to mostly good effect.
A similar philosophy was at play in the Miami game. Wynn goes down, and rather than move Brown from the right to the left (where he may not have practiced all year), they just plugged Herron in for the rest of the game. Again, short term, you move as few people as possible where you think you can still field five professional OL. Herron wasn't really the problem in the Miami game, except for the very first play he was in where Miami loaded up that side and took advantage of the communication issues that were bound to occur.
Now, the big question will be: If Wynn is out this week, can you afford to maintain this philosophy? They may think that Wynn would be back for a divisional round, but if they don't win this week that doesn't matter at all. I would imagine they would move Brown to LT and Onwenu to RT, because this is do or die, but ultimately we'll see on Saturday. IF Wynn is out, that is, which looks more likely than not at this point.
