AG2R, Cannondale, Astana, Quickstep need to work together to isolate Froome.. burn out their domestiques to burn out Sky’s, and then once it’s just the GC contenders left then fight it out, leaving Froome to chase down attacks, rather than having his team do it.
It’s the only way they’re going to get any significant time on Froome today, who arguably looks like he’s going to win the tour due to having the strongest team rather than being the strongest rider..