I think Michael is looking at paying defense as losing a war of attrition. The opponent is better supplied and has you outnumbered by a huge amount. If you let him choose the battleground, his strengths will crush you.

Michael sees that now and I think we're going to see guerilla warfare on the streets of LA. "Normal" Zeds don't seem to pose a problem for our friends but the special ones, esp the Little Ones, only seem to go down with special attacks - fire, lethal injection, M134, ripping an arm off with a huge gate, dropping a building on them and shooting them point blank in the eye. You get the idea.

I think we'll see some very interesting stuff being pulled off in season 4 and CJ will be planning with Michael executing...