Like Ava Coleman, the hilariously self-centered principal she plays to comedic perfection on the hit ABC sitcom Abbott Elementary, Janelle James gets bored easily. But before she can be written off as flighty, she’s quick to point out that she loses interest because she’s intelligent, not merely mercurial. “I’m supersmart, and when you’re very smart, things come to you easily,” she says. “I go to one thing and I master it, then I go on to the next thing.” In the years before she started