Actually, the computer game (and online game) does make adjustments for players with extreme stats:
http://somonline.wikia.com/wiki/Maximum ... e_ExcessesYou can see the
Correct Board Game Excesses is checked for the online game here:
http://somonline.wikia.com/wiki/Maximum_RulesFor the vast majority of players the 50-50 split works better than you might think at first glance. While pitchers all have X-chart chances that take up one-third of their card, the remaining two columns give enough flexibility to differentiate between a Sandy Koufax versus a poor pitcher, even versus a position player pitching.
Also, imagine if they made a set of cards that matched up each hitter against each pitcher. So you would have a Koufax versus Mays card for example (i.e., thousands of cards representing each possible matchup). One giant card with all six columns. The card would have exactly the same number of hit, homerun, walk, and strikeout chances (and so on) as their two individual cards do now!
Never forget that in almost all online leagues, hitters are facing better pitching and pitchers are facing better hitters than they did in real life. Thus, it is statistically impossible for players
on average to mirror their real life results.
milleram does make a good point about Bob Gibson and how unlikely it is he would duplicate a 1.12 ERA (even in a replay league). I agree! However, I would argue that his ERA being that good was a fluke. Sure, he had a great year. However, considering how many hits, homeruns, and walks he gave up--while really good--you would have expected a higher ERA than he had.