"My successor will need one other particular strength: the ability to fight off the ABCs of business decay, which are arrogance, bureaucracy and complacency," Buffett said. "When these corporate cancers metastasize, even the strongest of companies can falter."
The Berkshire chief went on to highlight General Motors, IBM, Sears Roebuck, and US Steel as examples of corporate titans that once appeared to have unassailable grips on their industries. "The destructive behavior I deplored above eventually led each of them to fall to depths that their CEOs and directors had not long before thought impossible," he said.
From:
https://www.businessinsider.com/warren-buffett-bill-melinda-gates-foundation-ceo-abcs-philanthropy-dangers-2021-7