In a column for Sky Germany, he said: "The defence is and remains Bayern's Achilles' heel. Matthijs de Ligt was sold, even though he was the most stable player over the last two years. He was the head of defence. Now Bayern are again looking for a successor to David Alaba. For me, it is a disgrace that this leader is missing. After all, we are talking about Bayern here. All the centre-backs currently in the Bayern squad have to deal with themselves first. A leader has to be clear about himself, he has to be recognized by the team. Of course, the mistakes made by Min-jae Kim and Dayot Upamecano are also a topic of discussion in the dressing room. The club has big plans and now things are going back to where they left off last season."