Froome might want to peak later in the race but that is when the fatigue factor should kick in as well. Contador and others have mentioned it after attempting the double. Aiming to be good for the third week is fine but maybe not in consecutive grand tours. After a break his legs should be okay at the moment but the accumulated racing will have to have some sort of effect. Whether it's enough to hurt his chances or whether others can take advantage of it is another thing. They will have to be more aggressive in the mountains than last year and Froome was comforted by the fact that the best climber in the race was riding in front of him, Uran rode for a podium without taking too many risks and Bardet was not good enough to maintain the gaps he opened up in the mountains plus his usual TT issues.