The way TMTs are put together and work together as a team can greatly differ from other teams. This is mainly based on the fact that top managers have succeeded as individuals which often leads to a focus on functional team objectives rather than to working interdependently on a shared goal. TMTs consist of top managers from different functional areas of the firm, so they usually have different areas of expertise. Diversity and heterogeneity in teams can have a positive effect on teamwork. Nevertheless, there are also negative effects which have to be overcome as a team like not valuing different opinions and perspectives. A CEO that models valuing behavior and ensures the team has both a clear purpose and clear objectives can do just that. This also reduces social categorization effects because it leads to team members focusing more on their shared goals than on their differences.