Main thing is not training better.. that is maybe true respect others than were worried about doping while sky was focused in others things.. first thing is that they have 5 of the 10 betters tours contenders without doping in the world, and they are in SKy or in any other team.
Rogers and Nordhaug have had some problems recently, but Rogers was as strong in the past as with SKY
They will race strong this year.
I have followed Rigo and Henao from they were 18 years old, and everybody said about them to fight for the Tour.... the story of Porte is well Known, he began late, always very good, his first year pro he did 7 at Giro and ten at Romandie, and impresive in clasica San Sebastian. With Saxo his ITT were amazings, in SKy he is improving.. that is normal, he has to improve still...
Froome was a supertalent that didnt know how to race properly and was sick, Wiggo, it has been a superclass always...
It could be worse, they could get Nibali, Purito, Samu, Valverde, J VdB, Contador, TVG,...so, we are lucky they have just five...