Several teams went through complete overhauls during the 1994 offseason. At Newman-Haas Racing, Nigel Mansell left IndyCar and returned for good to Formula One, and Mario Andretti retired. The team signed Michael Andretti for the seat vacated by his father. Canadian Paul Tracy, who had harsh words about Michael Andretti (notably at Toronto) in 1994 while driving for Marlboro Team Penske, became Michael's teammate (and Mansell's replacement) at Newman-Haas when Marlboro Team Penske went from three cars to two. Gerry Forsythe and Barry Green, owners of Jacques Villeneuve's car in 1994, went their separate ways. Villeneuve stayed with the newly christened Team Green. Rahal-Hogan Racing released Mike Groff and signed Brazilian Raul Boesel and his Duracell sponsorship as a teammate to 1986 Indianapolis 500 winner Bobby Rahal. Target Chip Ganassi Racing lost both of its drivers from 1994, Michael Andretti and Brazilian Maurício Gugelmin. The team signed Jimmy Vasser from Hayhoe Racing and Bryan Herta from A.J. Foyt Racing. Eddie Cheever replaced Herta at A.J. Foyt Racing. PacWest Racing released both Dominic Dobson and Scott Sharp and signed 1985 Indianapolis 500 winner Danny Sullivan and Maurício Gugelmin, who came over from Ganassi Racing. Derrick Walker's team released Willy T. Ribbs and Mark Smith and signed Brazilian rookie Christian Fittipaldi to team with Robby Gordon. Dick Simon's team released Raul Boesel and Hiro Matsushita, signed Chilean rookie Eliseo Salazar, and added a second car at Phoenix for the rest of the season, driven primarily by Mexican rookie Carlos Guerrero. Hall Racing released Italian Teo Fabi and signed Brazilian rookie Gil de Ferran. Galles Racing added a second entry for Marco Greco from Long Beach until the end of the season to team with Adrian Fernandez. &lt;a href="Dale%20Coyne%20Racing"&gt;Payton/Coyne Racing&lt;/a&gt; signed Belgian Eric Bachelart as its second driver, teaming with Alessandro Zampedri.