N.H. Rev. Stat. Ann. § 38-A:7

The authority shall appoint a chairman, who shall be a member of the authority, and shall appoint a secretary and treasurer. The authority may also appoint a vice chairman from its members, said vice chairman to act as chairman in the absence or inability of the chairman. The secretary may be a member of the authority. The treasurer shall not be a member of the authority. The authority may appoint a general manager, to hold office during the pleasure of the authority, and subject to the general control of the authority.