There are weaknesses associated with each of the roles and these are outlined in the table below.
As with identifying a deficiency in the team makeup (i.e. if you are missing someone in the team who prefers a particular role), the knowledge of these weaknesses is important in order for you to put in place a strategy for overcoming them. You cannot use the weaknesses below as an excuse for the particular type of behaviour. For example, Team Workers are not allowed to shy away from decisions just because Belbin has identified this as one of their weaknesses.