DETROIT — Jaden Ivey showed glimpses of his ability to use his athleticism in transition during the Pistons’ Summer League stint in Las Vegas in July. In the first game against the Portland Trail Blazers, Ivey found himself in a two-on-one fast-break situation alongside forward Braxton Key. In most transition scenarios, the wing receives the ball to score. However, Key lobbed the ball to the explosive No. 5 overall pick for a two-handed slam. It’s apparent that Ivey has an innate ability to soar for lobs and contort his body in different ways to score inside or find his teammates. But through …