Higuain replacing Morata is a big upgrade. The argument that Morata will develop more is bullshit. Higuain scored 36 goals in one serie a season, Morata 15 goals in 2 seasons. We should look at what we lost ATM. To be clear Morata can develop more, but im not sure he will reach higher levels.
I would easily without doubt say that the difference between Higuain and Morata is bigger then the difference between Pogba and Pjanic. Lets not forget Pjanic made more points then Pogba last season. Ofcourse Pogba is better, but if Pjanic and one more classy CM comes, then I think we have replaced Pogba in the best possible way.
Pjanic, Herrera in Pogba out
Even better Pjanic, Herrera, Matudi in Pogba out.