Chelsea 3nd season

Starting my 3rd season with Chelsea and i need some help with transfers

My squad

GK
Cech
Courtois

RB:
Azpilicueta
ivanovic
CB:
Terry
Cahill
Kalas
Balanta
ivanovic
LB:
Alaba
Coentrao

DM:
Matic

CM:
Strootman
Romero
Lampard
Van ginkel

Attacking Mids:
Hazard
Oscar
Reus
Willian (could get over ?30m for him)
Schurrle

Striker:
Costa
Lukaku
Mitrovic

I play 4-3-3 most the time