There is still the need to improve our midfield.
With Marchisio, Pogba, Sturaro, Lemina, Khedira, Pereyra, Hernanes and Asamoah we have to many players.
If Khedira and Asamoah can stay healthy we should get rid of Lemina (who i really like) and Hernanes and then we can think about players like Banega.
then with Marchisio, Pogba, Sturaro, Khedira, Pereyra, Asamoah and someone in the type of Banega we would have complete midfield.
But imo Gundogan seems like a much better option for us than him.