How to beat 3-0-2-3-2 (3 levels higher)?

[Castreal]

Hi, I'm new here. I've been reading the forum from the back seat, and manage to resolve most of the formation tactics just by reading through the guides.

However, I'm due to face this Lvl 6 Pro (I'm only Lvl 3) in the Cup matches, whose formation I have yet to stumble upon:

------ST*----ST-------
--AML---AMC---AMR--
------MC*----MC------
----------------------
------DC*-DC-DC------

He seems to be heavy on attack, but lack defense. My thoughts are Counter Attack (tick).
He's average quality is 29.4, but has a good GK (36), DC (35), MC (43), and ST(38) which I've put a "*" in the formation above. My average quality is 31.3, I don't have any particularly good player, they are all averaged out 5*.

My plan of countering his formation is 3-2-2-2-1 (butterfly):

----------ST---------
--AML----------AMR--
------MC----MC------
--DML----------DMR--
----DC---DC---DC----

Any advice if it will work? Currently don't have any DML.

Cheers.