Do resist any temptation to regard Rajiv Joseph's dark comedy, "Gruesome Playground Injuries," as some warm-up act for his "Bengal Tiger at the Baghdad Zoo."
Joyce Ketay and Seth Glewen have been upped to co-heads of Gersh's legit department.
Whether they end poorly or well, relationships always leave a mark, like a new memory etching a groove into our brains. That's a familiar idea, but Rajiv Joseph makes it feel fresh.
Here's the conundrum of comedy: Is it deadlier not to laugh when you're supposed to -- or to laugh when you're not? Newbie scribe Rajiv Joseph has yet to work that out in "All This Intimacy," a…