The "Worlds Most Admired Company

Why, during the 20th century, was GE such a successful company?
What are the reasons for the collapse in GEs financial performance during 2016-20?
What advice would you give to CEO Larry Culp? In particular, would you continue with the restructuring plan initiated by previous CEO John Flannery, implement a more radical unbundling of GE, or retain GEs existing business portfolio?
How does the corporate management system being implemented by Culp differ from that established by his predecessors at GE? It the new management system superior?