Some organisations include a position of deputy or vice chairperson. This person assists the chairperson and fills in if he or she is unavailable. It is essential that the chair and deputy chair have a good working relationship and understand their roles to ensure that duplication or confused direction does not occur.
The role of chairperson is a large and responsible one and there are many aspects of this work which can and should be shared with other committee members. Thus the role of deputy chairperson is largely the same as chairperson, but both people should share that workload as a team.