So does, Jason. He used the 2-3 zone in the finals last season. Apparently none of his friends tried to stop him from doing so. Sad story.
LOL, I have had success using 2-3 zone; but other times it has blown up in my face. The frustrating thing is I can rarely see the specific reasons why it works well in one game and not another.
That said, I went into the series last season with Magiker with an Enth advantage, Crunched his Normal, and felt I had a good read on GDP. When my team didn't hold on at home to win in game 2, I went into game 3 with pretty much equal Enth, same effort, and a much less certain read on GDP...in that 3rd game my much inferior roster needed something to gives us a boost.
I felt my only hope was to exploit what I felt was already an advantage in rebounding for my team. So I figured going 2-3 zone would allow us to dominate the glass and give my team more shots than TKI. It worked...kind of. We destroyed them on the offensive glass 15-4 (although total rebounds was pretty even), and we had 12 more shots than TKI in that game.
Unfortunately it seems that we missed about all of those extra possession shots and to make matters worse TKI shot 54% for the game. Wouldn't have been my ideal choice to play 2-3 zone...but TKI was so much better than my team, pretty much across the board; so I had to do something to try to shake things up.