Wenger's idea of rotation is chucking 7 guys who have hardly played football all season on in the same match. It is usually this game too, and we pretty much always lose.
The exception was last year where there was a small chance we'd actually win the group, but next to no rotation leading up to the match we managed to finish 2nd anyway. To top it all off, Wenger's non-rotation master plan made sure we sent out a team 3 days later which was dead on its collective feet to lose embarrassingly to a very poor Man U.