The former Germany defender, who spent three years at the Santiago Bernabeu, believes the hierarchy at his old club wants the Frenchman can become Real's Pep Guardiola.
Former Real Madrid defender Christoph Metzelder has admitted he does not envy the task and pressure facing Zinedine Zidane as coach at the Santiago Bernabeu.
Zidane was appointed as Rafael Benitez's replacement in January having coached Castilla - Madrid's 'B' team - for 18 months.
His route to the top job as a former player has drawn comparisons with former Barcelona coach Pep Guardiola and Metzelder believes the Madrid hierarchy hopes to uncover its own version of the Catalan.