It's better to have no cofounder than to have a bad cofounder, but it's still bad to be a solo founder.

The single word that matters most I think to keep the company productive as it grows is alignment.

You have to find a small market in which you can get a monopoly and then quickly expand.

You also want to fire people who a) create office politics, and b) who are persistently negative.

... fire fast when it's not working. It's better for the company, it's also better for the employee.

Why couldn't it have been done 2 years ago, and why will 2 years in the future be too late?

Founders need to figure out what the message of the company is going to be.