Baryshnikov, making an emphatic 'Case'
For top honors in this year's contest for most ironic casting decision, I nominate Mikhail Baryshnikov, playing the role of a man who refuses to dance. Would seem a waste of a powerful pair of legs, wouldn't it? In point of fact, "Man in a Case" " a visually arresting performance piece that becomes mired at times in arty display " remains an engaging showcase for Baryshnikov's kinetic gifts. Even when the great balle…