One of the most universal concerns in many companies, especially in service-related businesses, is how to deal with the superstar team member who has an unhealthy ego. The May 2013 issue of the Harvard Business Review includes a great case study that addresses that all-too-common dilemma. The following is a portion of that article: http://hbr.org/2013/05/the-unmanageable-star-performer/ar/1.
If you have someone on your team like this, we would encourage you to deal with it now! You may even want to seek outside help. For those of you who have participated on any sports teams, you know that sometimes the team plays better without the big-ego superstar. We would love to hear your thoughts on this.