Former New York Times executive editor Bill Keller announced on Sunday night that he’s leaving the paper to become editor-in-chief of The Marshall Project, a nonprofit journalism venture that will focus on the American criminal-justice system. He’s worked as a columnist at the paper since giving up the top position in 2011. Several journalists have left major publications to found their own sites recently, but Keller rejected comparisons to Ezra Klein and Nate Silver. Keller worked at the Times for three decades and won a Pulitzer in 1988, so don’t you dare call him a wunderkind.