Robin MillerIndyCar Insider & NBC Pit Reporter Robin Miller took us way inside the IndyCar garage Sunday night. He had some potential headline making notes including a possible change in the plans of IndyCar Competition Director Derrick Walker.  It was announced this week that Walker was leaving at the end of the season but Miller said it could come before that. Robin also had some background on coming changes in the IndyCar schedule for 2016. Listen.