I think this has been a general problem for Movistar in recent years. While they still had strong leaders (Quintana, Carapaz, Landa, Valverde, Mas), the amount of domestiques who can help them in really difficult terrain has declined significantly. Of course, Oliveira, Erviti or Rojas are very reliable, but not strong enough climbers. So basically it has come down to Soler, Verona and Pedrero. While some years ago, they had Moreno, the Izagirres, Amador, Anacona (at least sometimes), Castroviejo, Plaza, Intxausti...