(a) The board shall act through resolutions adopted by the board. The affirmative vote of four directors is required to adopt a resolution.
(b) The board is a joint agent of the county and the municipality for hospital purposes and shall act solely for the joint benefit of the county and the municipality. However, the board shall act independently in the exercise of powers, duties, and functions under this subchapter.
(c) The board may appoint or employ any agent, employee, or official that the board considers necessary or advisable to carry out any power, duty, or function of the board.