It's quite possible for an executive to hit her goal for the quarter by ignoring the future.

There are no shortcuts to knowledge, especially knowledge gained from personal experience. Following conventional wisdom and relying on shortcuts can be worse than knowing nothing at all.

It's quite possible for an executive to hit her goal for the quarter by ignoring the future.

The right thing to do is to thank them for their work, let people know that they're moving on, and ... you don't really have to explain all their personal details. It's more important to leave them with their dignity... and let them go on to live another day. Remember, what you say at that meeting, that's their reputation.

Startup CEOs should not play the odds. When you are building a company, you must believe there is an answer and you cannot pay attention to your odds of finding it. You just have to find it. It matters not whether your chances are nine in ten or one in a thousand; your task is the same.

Groupon looked like a very high valuation, but any investment in a great company at any stage is almost always a good investment.

There are no silver bullets.