I was sitting on the plane back from Australia a little while back and in searching through the in-flight entertainment, a documentary caught my eye: Roger Federer, with the tagline, "Follow the Great Swiss champion from racket-throwing tennis brat to the perfectly composed world number one". With excitement, I hoped this documentary would uncover some of the reasons why Federer shifted in his temperament so significantly. Sadly, it was just another documentary - retracing the history of his winnings, with nice interviews [...]