Christopher G. Long joined hedge fund manager Endowment Capital Group as CEO. Mr. Long assumes the title from Philip Timon, who founded Endowment Capital in 2004 and remains CIO and portfolio manager. The firm was closed to new client money but is reopening with roughly $300 million in assets under management, and plans to close again at $400 million, Mr. Long said in an e-mail. Mr. Long was COO at Friess Associates. Bill DAlonzo, CEO and CIO of Friess, said Mr. Longs responsibilities were assumed by others in the firm.