In Sunday's Calendar section
we learn that plays are sometimes very short. And yet other times they're very very long.I kid, but I actually do like this quote that ends the very very long article by Reed Johnson, from one of the actors in Gatz--Kristen Sieh, who portrays several characters in "Gatz," says that for her as a performer, handling a marathon play is a straightforward time-management task of "keeping yourself ready to do good work."…