I assume you are talking about this game:
(22456384). Personally I do not think the 2-3 zone won that game for you, it had more to do with this: Viral Infections looked like the only team trying out there.
Now, I can't completely disagree that the 2-3 zone was a bad choice, though. You started a SF with inept outside d. I certainly would not go 3-2 with that kind of player and would be extremely hesitant to play him in a man d, too.
Run of the Mill Canadian Manager