Playing to WinTo succeed in business, your power players must be social, stable and smart, but most of all, they must win.

There are many ways to categorize people and just as many ways to categorize their personalities. I like the following way because it's simple and straightforward. It focuses on four personality types--and I think it describes the cast of characters running around this planet pretty well:

• I must be liked.
• I must be comfortable.
• I must be right.
• I must win.

For entrepreneurs, the reality is that we need all four types of personalities in a business. One is not better than another, and they typically complement each other within a team. The only hard and fast piece of the formula is the role--and driving personality--of the leader. Let's look more closely at each: