With Tracy McGrady’s back acting up, the Rockets needed someone to step up their play and Luther Head is responding.  Head is a great shooter as he’s hit 49.5% of his 3-point attempts so far this season.  He’s averaging 11.0 points, 3.7 rebounds and 2.0 assists per game so far this season.  His numbers are skewed a little bit because early in the year he was coming off the bench.  The Rockets need Head to keep playing well so that defenses can’t collapse their defense on Yao.