sentences:  After failed efforts to persuade Washington state government officials to provide funding to update KeyArena, the SuperSonics' ownership group, led by Starbucks CEO Howard Schultz, sold the team to Professional Basketball Club LLC (PBC), an investment group headed by Oklahoma City businessman Clay Bennett.After failing to persuade local governments to fund a US$500 million arena complex, Bennett's group notified the NBA that it intended to move the team to Oklahoma City and requested arbitration with the city of Seattle to be released from its lease with KeyArena.When the request was rejected by a judge, Seattle sued Bennett's group to enforce the lease that required the team to play in KeyArena through 2010.