The Board consists of 15 trustees. The Governor, the President of the Senate, and the Speaker of the House of Delegates are ex officio trustees. With the advice and consent of the Senate, the Governor shall appoint the other 12 trustees. The Governor may delegate any or all of the Governor’s powers or duties as trustee to a member of the Executive Department of the State. The President of the Senate may delegate any or all of the President’s powers or duties as trustee to a member of the Senate. The Speaker of the House of Delegates may delegate any or all of the Speaker’s powers or duties as trustee to a member of the House of Delegates. At least two of the trustees appointed by the Governor shall have: an advanced degree in archaeology or a closely related field; and experience in archaeology. Of the trustees who qualify under paragraph (1) of this subsection: at least one shall have experience in submerged archaeology; and at least one shall have experience in terrestrial archaeology. The Secretary shall advise the Governor on the appointment of trustees qualified under paragraph (1) of this subsection after consulting with the Advisory Committee on Archaeology established under § 5A-336 of this subtitle. The term of an appointed trustee is 4 years. The terms of appointed trustees are staggered as required by the terms provided for trustees on October 1, 2005. If an appointed trustee fails to serve or to complete a term, the Governor shall appoint a successor for the rest of the term. To the extent practicable and consistent with the purposes of the Trust, trustees shall be chosen, whether by delegation or appointment, to achieve a broad geographic distribution of trustees throughout the State.