That's why this game is a lot better when played with two people. Maybe neither of you can really hit, but you're certainly not perfect fielding automatons like the computer, so there are enough mistakes made to lead to a decent amount of scoring over a full nine-inning game.
Fielding the ball is almost always tough in this genre of baseball game because the camera tends to stay in very close to the ball, so you really have no idea where the fielder you're controlling will be until the ball is already right on him. This introduces a realistic amount of reflexes to a baseball game, except that easy grounders straight to the shortstop can be missed entirely because you might have expected your shortstop wouldn't be in the perfect position, so you moved and missed the catch. There's no way of telling, and worse, your movements move every player on the field at once. So if a grounder goes just by the pitcher for the second baseman to pick up you'll often find that when you move your pitcher to try and catch it, should you miss your second baseman will have moved miles away. The fielding's irritating, but two player games needs that dose of chaos to remain interesting. Online two player is also available if that's something you're interested in.
Baseball Stars Professional not really worth the asking price, but it's not a terrible game either. On the off-chance you want arcade old-school baseball action on your PS3, this is your product. Throw in some hokey Japanese humor, and it's all the better.
Baseball Stars Professional is rated E (Everyone) by the ESRB. This game can also be found on the PSP.