In 1984, Disney became the target of a corporate raid by Saul Steinberg, who intended to break up the company piece by piece. At the same time, Roy E. Disney, who had already resigned as President in 1977, relinquished his spot on the Board of Directors to use his clout to change the status quo and improve the company's declining fortune. Disney escaped Steinberg's attempt by paying him greenmail, but in its aftermath CEO Ron W. Miller resigned, to be replaced by Michael Eisner. Roy Disney, now back on the Board as its Vice-Chairman, convinced Eisner to let him supervise the animation department, whose future was in doubt after the disappointing box office performance of its big-budget PG-rated feature, "The Black Cauldron". The studio's next release, "The Great Mouse Detective", fared better in relation to its significantly smaller budget, but it was overshadowed by Don Bluth's "An American Tail", another film featuring mice characters that competed directly with "Mouse Detective" in theaters.