LINCOLN -- The National Golf Foundation has come up with ways to improve Lincoln's city golf program. The NGF looked at operations of the City’s four 18-hole golf courses and the 9-hole Ager Junior Golf Course. The NGF suggested 18-hole golf courses operate under a single management structure. Another recommendation was modify the fee structure so Highlands Golf Course is a premier facility and Mahoney Golf Course a value facility. Also the NGF suggested the city invest $3 million in improvements and repairs to all courses and make facilities more appealing to women golfers.