Darryl Thompson was named president at Stonebrook Capital Management, an alternative investment firm, confirmed spokesman Lemuel Brewster. It is a new position. Mr. Thompson will report to Jerome Abernathy, Stonebrooks founder and CIO. Mr. Thompson was partner at TSG Capital Group, a private equity firm. Mark Inglis, CFO of TSG Capital, said Mr. Thompson will retain his responsibilities part time until the firm winds down its remaining investments.