His work has spanned the centuries this season, from assisting Rafael de Acha in the ambitious Shakespeare Project to taking the reins of new plays like Day of Reckoning and Madagascar. He is as fearless as he is generous, making the most of whatever is on the page and letting his actors find their often-surprising best. Martinez watches their back: No one looks bad onstage when this man is in charge, and his choices in everything from the subtlest gestures to the broadest strokes resonate with the feeling of truth.