SALT LAKE CITY — The blockbuster trade that sent longtime Clippers forward Blake Griffin to Detroit this week reinforced to the Warriors a sobering fact: In a league built on the realities of business, the notion of "loyalty" is a fraud. It was only last summer that L.A.'s front office lavished Griffin with a fake jersey retirement and "Clipper4Life" promises before signing him to a five-year, $171 million deal. But when a slew of injuries dampened the Clippers' season outlook, they changed course, shipping Griffin, Brice Johnson and Willie Reed to the Pistons for Tobias Harris, Avery Bradley, Boban Marjanovic, and a first- and second-round draft pick.