It's all about the swing timing. When you get 2 strikes on you, you should be swinging at anything close. My strategy is to continue looking for a harder pitch, (white or purple) rather than trying to adjust to every pitch they throw. This inevitably throws my timing off for the slower pitches. If I see an offspeed pitch, (red or green) I just leave the stick centered and take a hack at it if its close, but because my timing is off it's usually a foul ball. If they keep throwing breaking stuff you may strike out but hopefully you will get a fastball that you can handle. I usually leave the left stick centered when I have two strikes so when I do manage to get a hit, its a ground ball or liner right up the middle. It also seems like with the left stick centered your hitter doesn't swing and miss as much as you do when aiming.