I prefer Casey's approach. Although not as high scoring, the games are much more enjoyable. We're losing about the same amount, but the game's at least seem winnable. Under Triano it was almost always an automatic loss. I like what I've seen so far from Casey. Our offense is suffering, but I think it's because it's our focus on D. We've jumped from dead last in the league (you could even say all time) in defensive efficiency to 15th in the league. You can't argue with results like that.
I think the offense will come with time, but you can't hate on Casey with results like this after only a month and with a shortened training camp.