OPQS desperately needs the victory. Boonen seems to be lacking the endurance for the complete race at high intensity. Cancellara and Vanmarcke will most probably have to rely on themselves.
So, the Sunday's plot looks obvious. One of the Steppers in each brake of the day, putting the pressure on Trek and Belkin, trying to afford a free ride to their executor Boonen.
And an important detail... OPQS needs to make the race. They shouldn't wait for the others to do it for them. When it happened last Sunday - they've played the wrong card.