With Cassius Winston returning for Michigan State, the Spartans have their star player (and top spot in SI’s way-too-early 2019–20 rankings) locked in. But with the new NBA draft rules allowing greater freedom for underclassmen to get a feel for their professional prospects—even hire an agent to help them do so—while still leaving the door open to return to school, other schools haven’t been as lucky. A number of last season’s stars are gone for good, but the second group of NBA draft declarers could swing either way. The players who could potentially come back have until midnight on May 29, 10 days after the league’s annual combine ends, to decide whether to withdraw from the draft pool.