When sorting out the team leader of Astana, it’s best to keep in mind realistic race goals for each:
Lance Armstrong: Former Tour winner, but no longer dominant in the time trial or in the mountains. Still very talented.
Race goals: wear the yellow jersey for a few stages, if possible. Win a stage or two, if possible.
Lance is going to be looking opportunistically for ways to achieve those goals.
Alberto Contador: Former Tour winner. Extremely talented, strong in the mountains, very strong in the time trial. By far the favorite to wear the yellow jersey into Paris.
Race goal: Win the TdF.
With those in mind, the decision yesterday by Bruyneel makes perfect sense. It put Lance in a position to maybe wear the jersey for a few days (although, not tomorrow), in keeping with one of his race goals. It also causes the peloton to have to focus on more, different threats, which can drastically weaken the other teams when the time comes to put Contador in the lead permanently. In addition, with Columbia having placed so many strong riders in the break away, it was vital for Bruyneel to have some strong riders up there. The opportunity arose for one of them to be Armstrong.
With 4 Astana riders now in the top 5, Bruyneel can now run the Tour in favor of his riders as he sees fit. He’s in the perfect position to get Amstrong some time in yellow as well as a possible stage win, and to set his chess pieces in place to overwhelmingly favor Contador for the final GC victory in Paris.
Bruyneel’s tactics are brilliant as always. Nothing that happened yesterday has anything to do with a conflict over the team leadership. Remember that it works in Contador’s favor to have the peloton be confused (for a short time) about who is really going to be the Astana leader.
But, really, there’s no doubt that Contador is the team leader. If Armstrong were the team leader, he would never have been in that break yesterday without another obvious GC contender up there. He would have stayed in the peloton. If there was someone they considered a threat in the breakaway, the peloton would have hauled them back with Astana organizing the chase. It’s pretty obvious that Astana is so strong, they can run the race however they want, and more importantly, chase down anyone if they need to.