He is so mediocre it's painful for a club like Barca. To see with how much festivity his first day at Barca was presented makes me puke. United rejects are now superstars for Barcelona. How the mighty have fallen.
Just relax, it's going to be like this for awhile. Don't pop the veins, don't get frustrated over stuff you can't change. Enjoy the ride (or just watch other teams).