They sold/left: Lewandowski, Armenian dude, Ousman Dembele, Sahin, Gundogan, Kagawa, Gotze, Hummels and Reus is crippled/forever injured. All in the space of 4 seasons ffs.
They bought Sahin, Gotze and Kagawa back but those players came back broken with either being mediocre or injured
Terrible transfer strategy