I need to rebuild my Milan to won everything

My 1st team are:
Gk:abbiatti
dl:David alaba
dc:mexes
dc:hummels
dr:abate
mc:flamini
mc:de jong
aml:robinho
amc:boateng
amr:el shahrawy
st:falcao

i need top class playmaker to play mc,and amc to replace boateng-he dont play so good.what can u prefer to me