Whoever was responsible for bringing him here should have been immediately fired.
His character was seriously questionable during his time at Dortmund, everyone knew that he always crumbled under any sort of pressure even just by watching from TV, many of us raved about it when we were about to sign him, and yet someone decided it was a good idea to pay for that kind of player 30-40 mil, and all that in last year of his contract. I just can't understand how no one from our manager, scouting team, transfers expert team, etc. was aware of that and didn't stop that transfer. It's not like he was that good player to take that risk, he was your average bundesliga one season wonder ffs.