Being well networked is not just something to do when looking for a job. Being well networked is critical for your long-term success within an organization too.

Unfortunately, many people get "comfortable" within their own department and role and don't take the initiative to expand their reach. In times of rapid change, this can be a huge mistake. Often times I see companies laying off people in one department and hiring people in other departments.

One of the costliest mistakes I see teams make is when they hire people who are just like they are. This, more often than not, happens on executive teams where the primary leader has a very dominant personality.

The problem is that it creates a culture where certain behaviors are rewarded and other much needed behaviors in the organization are criticized. It also breeds "group thinking."

So, how do you avoid this costly situation?