There are a lot of lessons to be learned here but I think one of the biggest to remember is - don't send any emails to anyone (even Mom) that you wouldn't want

There are a lot of lessons to be learned here but I think one of the biggest to remember is - don't send any emails to anyone (even Mom) that you wouldn't want to be published on the front page of the NYT. Let alone to thousands of employees. For example, the yearly event emails that Travis sent from the frat-boy CEO frame of view. The employees probably received it well ahead of the event and likely even an uptick in morale, but in the long term, it is not an email he is proud of sending.