Topic: Using more challenges during matches
Interesting Op-Ed in the New York Times today suggesting that Federer is savvy for challenging line calls more often and that other players should make use of the available 3 challenges per set. I can see how this could be a good strategy, though generally it relies on "calculated strategery" to win points instead of sheer skill so I'm not sure I'm totally on the same page. What are others' thoughts?

