According to a message sent to NPR's staff, the organization aims to reduce its number of employees by about 10 percent. There are currently 840 staffers. The board says it has a plan to balance NPR's budget in fiscal year 2015.
Knell joined NPR in December 2011. He came after the resignation of Vivian Schiller, who left after two high-profile controversies. Now he's moving to National Geographic for what he says is an opportunity "I could not turn down."