I'm curious as to how many business's you have owned and operated successfully.
Have you thought about some industries like agriculture where the owners have very little control over the prices paid for their products?  They could be the best business manager but if they have a poor year with low yield d/t things like weather and can't get a fair price for what they are selling how is that their fault.  Time to close the barn door and bid farewell to their last tomato.