Let's make this simple. It doesn't matter which of the three quarterbacks plays for the Texans in Kansas City on Sunday. Fantasy owners shouldn't have any of them in their lineups.
Starter Matt Schaub has been a pick-prone train wreck most of the year and is dealing with a foot injury. Neither T.J. Yates or Case Keenum has proven enough in the NFL to earn enough trust to even be picked up off the waiver wire.
Add all that to the fact that the undefeated Chiefs are ranked first in the NFL in points allowed (65), turnovers (18), interceptions (10) and passing yards yielded per attempt (4.6) and it becomes clear that no Houston quarterback is worthy of Fantasy attention in Week 7.
It would be wise to leave Schaub on your bench even if deemed healthy enough to play.