[Layton is my Homeboy]

Originally Posted by DiMaggio5CF

I don't know if this has been incorporated into the game yet, but I'd like to see being a successful starter or reliever be based on types of pitches the guy throws.

A guy who throws enough different pitches of reasonable quality has a good shot to be a good starter, and a guy who throws only one or two pitches well is probably more started to be a reliever.

That is, in fact, already part of the game: link.