[UPDATE, Dec. 16, 2016: Sabre announced that Sean Menke will become president and CEO on Dec. 31. He's been at Sabre since October 2015 as an EVP and as president of Sabre Travel Network, responsible for the the company's global distribution system. He previously was CEO of Frontier Airlines and served in senior positions at Air Canada and Hawaiian Airlines. Non-executive chairman of the board Larry Kellner, a former Continental Airlines' CEO, becomes executive chairman on the same day.]

After Sabre on Monday announced president and CEO Tom Klein's plans to depart . . .