Re: "GEC ... made money"
"GEC wasn't exciting but it made money and almost bought BAe! "
Simpson was a management disaster at GEC/Marconi and elsewhere (e.g. Lucas, and Rover). See e.g.
http://www.thisismoney.co.uk/money/news/article-1551157/The-16311bn-wreckers.html
but that article and your comment misses a major part of the picture which any GEC engineering employee or any potential GEC customer looking for high-tech products/services (rather than MoD-style cost-plus contracts) would probably understand:
GEC may have "made money" for years according to its books, but part of the reason it appeared profitable was Weinstock's investment strike - for years he'd overseen a strategy of putting money in the bank rather than investing significantly in its own people, processes, and products. What happened after Weinstock was an inevitable consequence of that investment strike.