Now is the season of my discontent. After a last-minute flurry of Broadway openings, in advance of Thursday’s deadline for Tony nominations, I find myself with little to rave about. A few of the spring’s new musicals (Rocky, Aladdin) have had their pleasures, and several revivals have been first-rate, most recently Michael Grandage’s smashingly good production of Martin McDonagh’s The Cripple of Inishmaan, starring Daniel Radcliffe.