Texas Business Organizations Code - BUS ORG § 22.204. Number of Directors

(a) If the corporation has a board of directors, a corporation may not have fewer than three directors.  The number of directors shall be set by, or in the manner provided by, the certificate of formation or bylaws of the corporation, except that the number of directors on the initial board of directors must be set by the certificate of formation.

(b) The number of directors may be increased or decreased by amendment to, or in the manner provided by, the certificate of formation or bylaws.  A decrease in the number of directors may not shorten the term of an incumbent director.

(c) In the absence of a provision of the certificate of formation or a bylaw setting the number of directors or providing for the manner in which the number of directors shall be determined, the number of directors is the same as the number constituting the initial board of directors.