16th place made up 18 minutes today. If..........he were to do it on the next stage, he would take over the overall lead. I'm trying to figure out at what time gap the GC group lets a rider go. Unless they are protecting a higher rider, I would be trying to get all of my riders that are 15-25 minutes behind the yellow into the break. Team Sky would be forced to defend their position on 2 fronts. They would have to worry about losing time/the lead to the front of the race as well as the other GC contenders. That is a lot to deal with. I'm sure there is more to it than that, though.