On 15 March the 47-year-old Koolhof signed a two-year contract at SC Cambuur-Leeuwarden, taking effect 1 July 2007. Gerrie Schouwenaar, who acted as interim manager, departed for Qatar. His spot was taken by Alfons Arts, who became Koolhof's assistant manager as well as a youth trainer.
In March 2007, Koolhof, then 47 years old, signed a two-year deal with SC Cambuur-Leeuwarden that began on July 1, 2007. Gerrie Schouwenaar, who had been acting as interim manager, departed for Qatar, and was replaced by Alfons Arts, who also took on the role of assistant manager and youth trainer.