At YC we have this public phrase, and it's relentlessly resourceful.

It's become popular in recent years to say that the idea doesn't matter.

You have to save the vision speeches for when the company is winning. When you're not winning, you just have to get momentum back.

The most common post YC failure case for the companies we fund, is they're incredibly focussed during YC on their company... and after they start doing a lot of other things. They advise companies, they go to conferences, whatever.

In the beginning of a company, there is no management and this actually works really well.

One of the pieces of advice that we give at YC is: try to work together on a project rather than just doing an interview.

If you pivot, do it fully and with conviction. The worst thing is to try to do a bit of the old and the new-it's hard to kill your babies.