Big Pistons Forever Has it right in #18. It is a lot of what I was preparing to say.
One of the reasons that they failed is because all big corporations fail - eventually - and usually by their own hand. Kodak had the first digital camera in their lab and could not see the future. Whilst Sony lost the VHS/Betamax battle, it won the professional side of the business and they had multiple product lines, so they got through - this time. There are dozens of examples of how corporations fail. Each generation of new graduates have read the stories and think that they are smarter than their fathers and grandfathers. Until the day they discover that they are not.
Boeing will be rescued by the USA tax payer because of the military side but the commercial is going to die. They made too many mistakes and changes. Thus far Airbus has, essentially, only made one - the 380 but they had enough other product lines, so they got through - this time.
I agree that many 'bright young boys' will try their hand at fixing Boeing and make money for themselves but the cost in money and reputation can NEVER be recovered. The Max might now be safe to fly but the deaths will not be forgotten. Overall, as others say, the Max is a millstone, the 78 limps on with the 777 being the last of a long and fabulous line up. In the forseeable future the only global game is Airbus. When USA carriers started buying the Bus, Boeing could have responded in time. But they were complacent and then panicked. It is an old, old story.