Margret Overdijk is director at the mental health care institute InGeest in the region of Amsterdam and Haarlem. She started working as a psychiatric nurse in 1982. She graduated for the Bachelor in Business Administration in Health at the Hogeschool Utrecht in 1997. She graduated for the executive MBA (Master Business Administration) at Nyenrode Business Universiteit in 2011. Margret is experienced in strategic and operational management in the field of mental health care for (difficult to engage) people with severe mental ilness. Besides this she is experienced in developing and implementing strategic policies on assertive outreach and intensive home treatment. Margret was involved with the CCAF (Centre for the certification of ACT and FACT) from 2007 till 2017.