Wis. Stat. § 229.6805: Facility management.

During the term of any lease between the district and a professional baseball team with respect to baseball park facilities, the district shall, at the district’s expense, contract with a facility management company or employ an executive director with expertise in managing and operating professional sports facilities and venues similar to the baseball park facilities. The contract shall require the facility management company or executive director to have primary responsibility to manage and supervise the development, construction, improvement, repair, and maintenance of the baseball park facilities.