Oh, they've been quite successful at what they want to do. They have successfully looted the company quite thoroughly. Boeing had spent nearly a century building up a strong company with a strong brand that was recognized and valued across the world. After the MBAs took over they looted everything, they trashed the brand for short term gains, they funneled all of the cash on hand into the pockets of shareholders through dividends and stock buybacks. They've enriched many already hyper wealthy folks by many tens of billions of dollars, and all it took was destruction of a world class engineering institution and a few hundred lives.