After seven seasons at the Goodman, Mosher was invited by former New York City mayor John V. Lindsay to head the theatre at Lincoln Center, which, despite the leadership of such theatre giants as Elia Kazan and Joseph Papp, had faltered through much of its twenty-year history. At the time of Lindsay's offer, the theatre had not produced a play in over four years; it had virtually no operating capital, little ability to generate it, and no community of artists to energize the stages.