Robinson's Hollywood acting, however, did not sit well with Dodgers co-owner Walter O'Malley. He called Robinson "Rickey's prima donna". In late 1950, Rickey's contract as the Dodgers' team President expired. Bothered by a lot of disagreements with O'Malley, and with no hope of being re-appointed as President of the Dodgers, Rickey cashed out his one-quarter financial interest in the team. This left O'Malley in full control of the team. Rickey then became general manager of the Pittsburgh Pirates. Robinson was disappointed at the turn of events and wrote a letter to Rickey, whom he considered a father figure. In it he said, "Regardless of what happens to me in the future, it all can be placed on what you have done and, believe me, I appreciate it."