If there is too much Teamworker behaviour...
Teamworkers might be the model employees in an easygoing company where attention is paid to the atmosphere at work. With concern to ensure that everyone gels, Teamworkers will avoid conflict at all costs.
However, this can mean that no one is willing to challenge the status quo and that under-performers are more easily tolerated, in the interests of people pleasing. Without people to direct and initiate difficult conversations, the team or organisation might find itself coasting along, only to hit the rocks.