Kelley folded following the conclusion of the 2004 season. In 2005, Sharp, along with Delphi (who had become his personal sponsor), moved to Adrian Fernández's Fernández Racing. The switch brought about a small resurgence in Sharp's career and he was once again one of the top drivers in the IRL. 2005 saw him finish 5th in the championship, collecting a win at Kentucky Speedway along the way. However, Sharp struggled through the 2006 season as the team struggled to adapt to the Dallara chassis, and finished 11th in the points standings.