At a startup, it's hard enough to get a single thing right, much less a whole bunch of things. Especially if the things you are trying to do are not only dissimilar but actively impede each other.

The biggest problem I see with early-stage entrepreneurs is they get the idea in their head, and they leave it in their head. And they begin embellishing it in their head, making it more ornate. They add on the second story to their dream house - then add the tennis court and the turrets and the gargoyles.

If you want your company to succeed, you have to have the confidence in your business to take a bet on its future - to risk destroying a mediocre business model for the chance to have a strong one.

Iteration, not ideation, is the most important part of early stage entrepreneurship. You have to have a lot of ideas - a lot of bad ideas - if you want to end up with a good one.