 Complete the following phrase:  After the season concluded, a budget decrease led Kelley Racing to reduce its roster from three to two cars, leaving Renna without a race seat; he remained an employee of the team. Renna continued to work as Unsers spotter and drove go-karts to maintain his fitness. The difficulty in finding sponsorship to compete in races restricted Renna primarily to being a test driver, but he made a single race appearance in the 2003 IndyCar Series, the 