Thing is now, Evans doesn't need to attack, seeing as he's already in front of the rest of the main GC contenders.
Ullrich was the ultimate wheel sucker IMHO. The only thing he's ever attacked was a row of parked bicycles while driving his Porsche pissed out of his brains.
Beg to differ;
http://www.youtube.com/watch?v=l39ahBFGnuk