Rookie point guard Ben Simmons can't contend with a team that engineers its game plan to expose his inability to shoot. Second-year center Joel Embiid, who played in only 31 games last season, lacks the repertoire and the refinement to carry a team for four quarters. Brett Brown, in his first playoff run as a head coach, can't get them past a Celtics team whose two best players aren't even playing. That should tell you all you need to know about how well Brad Stevens is coaching his club by comparison.