On Isla Nublar there were a variety of offices located inside of the Visitor’s Center. One of these was labeled ‘General Manager’. It is unknown what services this office provided. This would have been the offices of the General Manager for the park. The General Manager is responsible for developing a vision for the park, and then implementing that vision into a good customer experience. The general manager handles the major issues that would have occurred in the park, including broken equipment or guest issues. The general manager would also have handled the press, as well as propose new rides or attractions for the park.
.Jurassic Park by Michael Crichton page 97 (First Edition, Thirty Fourth printing)