The casting of shiny actors like Mr. Hammer (of 'Call Me By Your Name') and Mr. Charles (of 'The Good Wife') has the perverse effect - though they are both spot on - of making the play seem mainstream. So does Ms. Shapiro's direction, which is confident and highly polished; even the boys' mortifying, half-remembered rec-room dance routines are snappily choreographed, by Faye Driscoll.