 He was expected to work closely with new offensive coordinator Greg Olson and head coach Dennis Allen to restore the angle-blocking scheme favored by star running back Darren McFadden, following the Raiders' disappointing 2012 offensive showing.After an 0-4 start to the 2014 season, the Raiders promoted Sparano to interim head coach on September 30, 2014 after firing head coach Dennis Allen.Sparano was not retained as head coach following the 2014 season.