Is Your Managerial Ego Too Big? Overlords of their own fiefdoms and overseers of inflated budgets and staffs, these type of managers can kill your company. Here's what every leader needs to know to take down the takeover artists.

Principalities are great for stamp collectors. They are less appealing when they exist inside your company, thanks to the manager or staffer who has built his or her own private Luxembourg.

It's a phenomenon known in the management trade as "empire building": an urge to create fiefdoms with pumped-up staffs and budgets that match the inflated ego of the perpetrator--and it can sabotage your team, bottom line and worse.

"It can kill the company," says Mark Faust, a growth and turnaround specialist at Cincinnati-based Echelon Management International and author of Growth or Bust! "You're lucky if it's just reducing the potential of the company by 20 or 30 percent, but it could be a lot more. It is one of the greatest constraining factors on U.S. business."