he can't quite turn in a small spot which very likely was the case for Bayern not triggering their buy back clause
He's not good enough for Bayern midfield anytime soon. Even Höljberg (?) surpassed him as a young talent - being two years younger too that is. But Bayern not pulling the clause to sell him directly to Liverpool for more profit has most likely to do with signing Leverkusen's highly acclaimed manager Reschke - so some sort of side deal.