i got some great victories by using different formations against him. he doesnt like it when you press full pitch
last season every Team could beat him with 4-4-2: normal, mixed, own half, short, hard, zonal. a friend tried it too and also won 5:1 like me.
mourinho is easy to beat with pressing full pitch by using the offside trap. if u have dl, dr and dmc you should set red on dl and dr and blue on dmc + offside trap