Bring in a billion dollars of investor money.
Hire thousands and thousands of employees.
Spend way more than you bring in every year.
Hire some shitty CEO with a terrible track record. Pay him way too much money.
Become desperate for cash and think of ways to milk your users dry.
Get rid of bad CEO and pay him even more money.
Then when all that backfires and you've further tanked your reputation you go back to the drawing board and realize the only option to cut losses is to fire half your staff, or more.
And that's the story of Unity3d.