Any decision, like new coke, gathers a ton of interest; however, you could argue that any decision yet the company survived doesn't make the list.
Bed, Bath & Beyond - got rid of name brands and went generic.
Blockbuster ignoring streaming.
Silicon Valley Bank ignored its funding concentration and liquidity risk.
Others made a series of mistakes to drive their companies in the ground. Retail is the most obvious, with K-mart, Sears, JC Penney and the list goes on.
The world is littered with Chapter 7-filing restaurant chains, some I really liked - Lone Star Steakhouse, Steak & Ale, Bennigans.