There's an interesting series on Netflix called "The Toys That Made Us"...and a good YouTube channeld called "Company Man." Watching the first series of the toy one, it covered lots of giant toy lines from the 80's. He-Man, G.I. Joe, Transformers...and went into a lot of what went wrong. First of all those companies were MASSIVE and hade global influence. But the thing that stuck out to me the most was the inability of the executives to anticipate market changes. Kinda like what Blockbuster did. They just thought theyd never fail, and stopped caring what kids actually thought, figuring they could tell them what they wanted. They also saturated their own markets. It's really bonehead stuff that makes you wonder what these people were thinking. Company Man reveals the same thing about all sorts of chains that failed, like how giant department store chains over-expanded, and then when they couldnt move their out-dated products they refused to liquidate them and just tried to change the looks of the stores while still selling 10 year-old junk.
It's all really fascinating how these corporations try to just get as big as possible, rake in as much profit as possible, lost touch with actual consumers, and inevitably collapse under some CEO who thinks trying to force people to buy worse sh*t is a great idea. Hell that's going on with the WWE right this second. Just like that one d*ckhead CEO whose practices eventually collapsed GE, Jack Welch.