Boeing’s New CEO Is Taking on the Ultimate Management Test Business InsiderBoeing CEO says defense is ‘core’ to business, doesn’t preclude sell-off of ‘fringe’ assets Breaking DefenseCan Ortberg’s reforms get Boeing back on an even keel? FlightglobalBoeing’s CEO wants to make it ‘great again.’ Here’s what’s standing in the way. MarketWatchBoeing defense’s business is ‘core’, but struggles abound for new CEO Reuters