'Bring in the heavy hitters' strikes me as an odd way to phrase 'the investors have decided to take your company away from you and put someone else in charge who may or may not understand the business'.

Surely the correct way to react to that is to start by asking what you've done wrong, and whether you can fix it? If the investors are just being assholes for the sake of it, you've got a fight on your hands, but hopefully that's not the typical case.

Unless it's a case where you don't want to run a big company? But the article didn't seem to be talking about that.