In 1962 Valley hired Al Davis, a former assistant coach for the San Diego Chargers, as head coach and general manager. In April 1966 Davis left the Raiders after being named AFL Commissioner. Two months later, the league announced its merger with the NFL. With the merger, the position of commissioner was no longer needed, and Davis entered into discussions with Valley about returning to the Raiders. On July 25, 1966, Davis returned as part owner of the team. He purchased a 10% interest in the team for US$18,000, and became the team's third general partner – the partner in charge of football operations.