 That second voice was Dennis A. Muhlenberg, celebrating the 737 MAX at a meeting of the Economic Club of Washington, D.C. in May 2018. James McNerney stepped down from Boeing leadership in 2015, making Muhlenberg CEO. The two men were of one mind on how to run Boeing. Muhlenberg continued major practices that McNerney had brought to Boeing. One was making and selling the 737 MAX.