There will be changing of the guard at United Airlines on Wednesday

Wednesday, May 20 will see a changing of the guard at United Airlines after the company's annual shareholder meeting. On Wednesday, current CEO Oscar Munoz will become the airline's executive chair and current president Scott Kirby will become the Chicago airline's CEO, in a transition announced in December. Munoz has served as CEO of United (Nasdaq: UAL) since 2015. He'll serve as the airline's executive chairman for a one-year term. Munoz recruited Kirby, with a 30-year career in the commercial…