Less so in deadlift apparently, though I aim to do about 30 reps in total in a workout, with 6-9 at work set weight, whereas on squat and bench more like 50 reps with 20+ at work set weight. "...since the deadlift involves more muscles and more weight than the other lifts , it is easier to overtrain and should not be trained using sets across. It is really easy to get really beat-up doing a lot of heavy deadlifts. One work set at the intensity of a real work set is usually quite sufficient to maintain improvement." Rippertoe p.298 'Starting Strength'