Hello everyone. I need a bit of assistance.
Tomorrow I will play a team that is top of the table two points ahead of me. A must win game for me. He plays a formation I never faced before.

----ST-----ST----
-------AMC-------
ML--MC---MC--MR
------------------
---DC--DC--DC----
--------GK--------

His MC, AMC and two STs have 6*. All others have 5*. His ML is a dribbler and his 5* MC is a CK specialist.
Here is my team's most usual line-up and formation.

Click image for larger version.  Name: United FC 9.jpg  Views: 63  Size: 69.6 KB  ID: 24855

Everyone has superb morale and will be in top condition when the match starts. Vidal will be fit.
Now, what should I do? And when I ask that, I mean about everything: from the playing, tackling, passing and other styles all the way to the arrows on the players. Should I totally change my formation? Should I look only at quality of the players or also have their recent forms on my mind? Should I even go out in the transfer market and buy someone??? If any experienced guy here reads this, please give me some sort of advice. It would mean a lot. Thanks...