Other team and driver shifts for 1990 included shake-ups at Penske and Patrick. Emerson Fittipaldi left Patrick Racing to join the Penske, and the original Patrick Racing Team transferred ownership to Chip Ganassi to become Chip Ganassi Racing. Pat Patrick returned with a new team, taking over the Alfa Romeo Indy car effort.
In 1990, there were significant changes within teams and drivers at Penske and Patrick. Emerson Fittipaldi left Patrick Racing to join Penske, leading to a shift in ownership for Patrick Racing, which was subsequently taken over by Chip Ganassi to form Chip Ganassi Racing. Pat Patrick then started anew with an Alfa Romeo Indy car team.