Kodak died a slow death because it was so worried about its cash cow (rolls of film) losing ground to the digital camera it patented in 1975. It fought a silly and very costly war with Polaroid that left it paying a billion in settlement for infringing on the instant photo technology. Both companies went through some form of bankruptcy because they lived for today and near future and not the 5+ years out.
Meanwhile, 3Ms demise is classic bean counter mismanagement with extreme obsession with meet wall streets earnings expectation for the upcoming quarter, ad nauseum. This always leads to mindless and unstrategic cost controls, budget cuts, skimping on research, cutting travel budget for customer service, and so on.
This "strategy" was brought here by Mr. GE McNerney in 2000. The company will never be the same. Buckley did slow down the sick sigma indoctrination but it was too late. He also couldn't convince McNerneys hand picked board to move away from the strategy, which Mikey now calls the "playbook" (or errors).
What ki---d 3M (relentlessly following the now discredited Gospel according to GE) is very different than what ki---d Kodak (fear of losing a cash cow). But both were the result of horrifically incompetent management.
One can only hope the HC spin gets a true visionary leader from an industry competitor (and not GE HC, as that is where Bich Le came from).