Van Marwijk has been searching for a midfielder or central defender but attempts to sign Andre Ooijer, Denny Landzaat and Khalid Boulahrouz have all been thwarted in recent weeks.
Van Marwijk told AD Sportwereld: "The club knows exactly what I want. I gave them a list of names. We will improve with any of those players, but don´t want half solutions."
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