Apple last week reported earnings, and with the exception of a strong showing from the iPad Pro, the key financial metrics were all down -- and for the third quarter running. So what's wrong with Apple? The company had been growing alarmingly well until last year, but growth suddenly has become elusive. It isn't going out of business, but it also isn't the performance king anymore. I'll share some thoughts on what happened to Apple and how to fix it -- if it can be fixed.