They may be on a team but not necessarily the best teams...If you look at the people that were/are on lances team they were all well rounded and could work whenever they were needed no matter what...that is why most people pick teams for the overall ability of the rider to ride through everything...Petacchi and Cippolini may only have ability in one area but they win specific races and stages and thats why they are on TdF teams because half the teams just want to win stages and finish the race...