In June 2009, shortly after playing his final match for Schalke 04's reserve squad, Landgraf signed a contract to work as assistant manager for Alemannia Aachen's reserve squad, but the contract was eventually cancelled so that he could start his coaching career by staying at Schalke 04.
In June 2009, shortly before Landgraf played his final match with Schalke 04's reserve squad, he signed a contract to serve as an assistant manager for Alemannia Aachen's reserve team. However, the agreement was later terminated so that Landgraf could commence his coaching career by continuing at Schalke 04.