OTHER OPTIONS   DeAngelo Evans is trying to turn his failed football dreams into a successful business.   By BILL REITER The Kansas City Star   ATLANTA | DeAngelo Evans barrels through the front door of P-Diddy’s restaurant, an enclave for the hip and rich, for athletes who have made it. He wears black slacks and a purple silk shirt, and his thick, low body moves powerfully across the room like the running back he once was.   But the athlete — the once-great runner who was supposed to b