re: Someone explain WHY the watered-down offense was necessary. Thanks.

because the game was in control at the time. Why risk injury to wide receivers and the QB needlessly. Landry was not 100% and the strength of their defense is the secondary. In addition we are ahead and trying to use as much clock as we can with the understanding that they are not a quick strike offense. Get out of the game as quickly as possible and move on the next win.