Here is some data: AZ Alkmaar MANAGER John van den Brom; John van den Brom CLUB AFC Ajax; John van den Brom CLUB De Graafschap; AZ Alkmaar OWNER Robert Eenhoorn.

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John van den Brom is the manager of AZ Alkmaar, owned by Robert Eehoorn, as well as playing for AFC Ajax and De Graafschap.