No way that you sit Graham. YOu know that NO and NYG will be a shoot out. Graham is the best TE in the game with Gronk out. WIth Rudolph you MAY get a TD and 60 yards as your ceiling. Graham could explode for 2TDs and 100yds.
In terms of the Givens Austin debate that is tough. I have seen them about the same on most rankings. I think Austin is the better player, but you are right he has been inconsitent and is playing the better defense. One thing to consider with the StL Buf game though is the weather. THat weather in Buf gets REALLY nasty and can ruin a passing game. I would lean towards Austin, but everyone has been talking up Givens, so can understand that since he is the passing attack in StL.