My sources tell me that Sam Tanenhaus is the next NYTBR editor. Publishers Weekly has more. Tanenhaus has authored bios of Whittaker Chambers and Louis Armstrong (and has an upcoming one on William Buckley), contributes to The New Republic and is a contributing editor to Vanity Fair. He is a writer primarily known for nonfiction bouncing between politics, biography and literature, which is what Keller was looking for. Here’s Tanenhaus on Updike.