Three months after stepping down as Pittsburgh Steelers head coach, Mike Tomlin finally opened up about what drove him away from the job he'd held for nearly two decades - and the word he used might surprise you. "There's a loneliness with leadership," Tomlin told NBC's Maria Taylor during an NBA pregame show on the network on Sunday, April 26. "I just thought it was a good time for me, personally. And what I mean by that is just where I am in life." It was the first time Tomlin had spoken publicly about his January resignation, and his candor cut far deeper than a polished exit statement.