He received a Tony Award for producing "Fiddler on the Roof" (1965) and almost gave up musical theatre before his Tony winning success directing and producing with Kander and Ebb's "Cabaret" in 1966, followed by Kander and Ebb's "Zorba" (Tony nomination, 1969). 1970 marked the start of his greatest creative collaboration, with composer/lyricist Stephen Sondheim. They had previously worked on "West Side Story" and their association spawned a long string of landmark productions, including "Company" (Tony Award, 1970), "Follies" (Tony Award, 1971), "A Little Night Music" (Tony Award, 1973), "Pacific Overtures" (Tony nomination, 1976), "Side by Side by Sondheim" (Tony nomination, 1977), and "" (Tony Award, 1979). Following "Merrily We Roll Along" (1981), which ran for 16 performances, they parted ways until "Bounce" in 2003.