I found out how to change pitchers while batting. Oddly enough, it is in the batting/baserunning menu when you are batting and the pitching/defense menu while pitching. It seems silly to have an option to warm up pitchers in the batting options and why have it in two places, but I'm glad it's there.
One of the things that bothers me most is the insane amount of button presses I have to perform tasks. To change a pitcher, it is start, pitching options, change pitcher, highlight old pitcher, highlight new pitcher, I think there is a substitution complete message, start again, and X to skip the cutscene. 7 or 8 button presses to change a pither and that's not counting the button presses on the Dpad. That's ridiculous and if EA was truly customizing MVP for PSP then that is something they should have addressed immediately with a better menu from the select button.
In another thread Scoop wrote:
I'm finding the game too homer friendly, especially for the CPU, as well. I am even using camera 3 to pinpoint my spots. You can't even dare to pitch in a hot zone. If you miss the meter spot then 8/10 times it is a double, triple, (ugh...just like 2004 I give up 1-4 triples a game), or HR. I'm finding that you can get the CPU to chase pitches out of the strike zone and I like the challenge, but it's not realistic.I'm still seeing a huge descrepency between User sliders and CPU sliders. The cpu still belts them out of the park way too much even after severely lowering CPU contact and power while my batters are stifled after slightly lowering User contact and power.
I'm still having fun with the game. I'm actually seeing the CPU steal at a realistic pace. I also like how they will try to draw a throw. I still get that "anything can happen" feeling like I do with MVP 2005. It also helps getting used to the controls. I've made some awesome and memorable plays in the field using the right trigger/analog nub.