No, That can't work with Fellaini.
X - X - X - X
Fellaini
X X X
That's the only way for him to be at his best. Like that, he'll make your defenders best of PL (maybe )
With national team :
X - X - X - X
X
Fellaini - X
X X
X
Wasn't good at all.
With U21 national team :
X - X - X - X
Fellaini - X
X - X - X
X
Wasn't bad but anywhere near what he does at Liège.