I think 2-3 is not flawed. It's just a poor little misunderstood kid whom no one wanna play with...
Well i can't say if the zone worked or not in this close game by just looking the boxscore(and also i dont have time to see if it worked).
On the 2on match with m2m you were winning since your attack was better than his OD.
On the 3rd I have my doubts you did a good defense, but anyway your offensive flow won you the game.