Federer and Cahill

Darren Cahill and Roger Federer AT LAST formed a coalition.

But now it is too early to judge how long and how successful this coalition will last. It is pretty obvious that it is very hard for Roger to really trusts a coach. On the Aussie's side, he feels obliged to help Andre in the summer (for WTT) and in the fall as well (for the Outback Series).

Thinking in economic way: their "status quo payoffs" are already very high, (see in the links for details) that makes them less willing to cooperation and the coalition is not stable.

If they really start it seriously, Darren faces the demanding task to help Roger achieve "satisfactory" (by Roger's standard!) results on the Continental clay (a masters shield and RG final at least), and more importantly, at Wimbledon. After this probation period, Andre might become a factor in this relationship.

This news is exciting. Can Darren do better than Tony? I remain "cautiously optimistic" on this. Darren is one of the most legendary tennis coaches in my opinion. Hopefully Roger gives him enough patience at the beginning and enough credits in the end.

Further readings if you are interested in this:

http://bleacherreport.com/articles/134750-smoke-and-mirrors-the-federercahillagassi-merry-go-round

http://bleacherreport.com/articles/134434-federer-and-cahill-the-tennis-worlds-brangelina