Here’s what we know: Obie Award winner Samuel D. Hunter (The Whale, Bright New Boise) is writing. Tony winner Joe Mantello (Wicked, Airline Highway) is directing. Emmy-winning ensemble member Laurie Metcalf (The Conners, Hacks) is starring. They want to do a show together at Steppenwolf. Who are we to get in their way? Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by joining TCG, which entitles you to copies of our quarterly print magazine…