An entrepreneur usually starts his business with the desire to be independent. People who worked in the corporate environment tend to leave at a certain point in their career. They take with them the corporate style of business.
After a time they notice that this knowledge is not sufficient to scale their business to the next level. They become stuck and build up a frustration that can even lead to a negative mindset. That is where coaching helps entrepreneurs get unstuck and remove the negative energy that makes them eventually sick.