Whether it's Watt, Brooks Reed, Connor Barwin, or Brian Cushing, Colts rookie offensive tackle Anthony Castonzo must play flawless in week 16.
Houston has an aggressive defense with four guys who can rush the quarterback both inside and out.
If Castonzo can't wall off the edge, Indy's offense will struggle throughout; this holds especially true in the ground game.
It's the one area where the Colts have had success on offense this season. That being said, however, against this defense you can't just pound the rock inside all day.
Using the passing game to setup draws and quick tosses will be imperative.
As for Castonzo, the better the pass protection, the better the odds of draws and screens working. The Colts are good enough to just attack Houston straight up. They need to manipulate and deceive to some extent.
Unfortunately, that won't happen if Castonzo fails to reduce the pass rush. There, the screens, draws and tosses won't have time to develop as defenders bombard the backfield all game long.
Nonetheless, if Castanzo can dominate anyone blitzing on his side, it's similar to a cornerback covering half the field on defense.
No one has success to that side, and it provides them with an extreme advantage. There, the Colts' offense would then be able to take over the game.