I think this is pretty interesting news. Z says that he wants to primarily stick with the sinker, and stop throwing his cutter, which he has always had control issues with. Obviously the sinker was always apart of Z's repertoire, but he relied on it much more back in 2003-2004, when he got a lot of ground ball outs and was obviously a much more effective pitcher. I don't recall hearing why he went away from using it primarily, or why he didn't consider this earlier, but it will be interesting to see what happens because of it. Obviously relying on his sinker isn't going to bring back 2004 Zambrano, but it might help him control his walks and lower his pitch count, making him a more effective pitcher. http://www.chicagotribune.com/sports/baseball/cubs/ct-spt-0219-cubs-chicago-spring-training-20100218,0,2502657.story