The NBA draft is a time for optimism, the launching pad for 60 pro careers full of aspirations of championships and star-making moments. In reality, though, only a couple will likely become stars; many more will become key role players, while others will barely sniff the league. Here are the biggest questions about those future careers — and the teams investing in them — that arose out of Thursday night’s proceedings: Who’s the best prospect — Deandre Ayton, Marvin Bagley III … or somebody else? The Phoenix Suns didn’t surprise many fans and observers when they took Arizona’s Deandre Ayton with the No.