This link came up with Casper's link above:
Dennis Ron 2017 MasterEdit
https://www.youtube.com/watch?v=Dh2iQSU9DJE
It provides interesting insights into Ron's departure from McLaren.
Ron disagreed with his fellow shareholders over the fact that he was not prepared to place the "Technology Company" he had created at risk pursuing success in F1.
Ron wanted out of the company by the time he was 70 in order that he could pursue other interests.
He considers his exit negotiation his most successful ever, and is very satisfied with the settlement he received.
I am really interested to see what the rest of the members make of this video.