That super Telekom was built around Ullrich, Zabel, Riis, Bölts and Heppner. The latter three were quite old, and Ullrich spent pretty much every off-season goofing around. Zabel remained at the same super high level until his last couple seasons. Meanwhile, new blood like Klöden and Vinokourov performed incredibly well, but by the mid 2000s most of their high-profile signings were busts (Botero, Savoldelli, Evans, Sevilla, even Guerini despite his Alpe d'Huez win). How much of that was due to Telekom/T-Mobile having lost the arms race and how much was it the inevitable result of signing heavy users from smaller teams is anyone's guess, but it seems to me the reasons for their diminished performance have more to do with bad management and unprofessional star riders than with the doping programs available to their riders.