As a baseball purist, I obviously don't share the same POV as yogsloth. But I also don't see why the goals of the gamer and the baseball purist need to be in conflict.
As a baseball fan, I believe that the goal of WIS should always be to come closer and closer to simulating how actual baseball games might be played using a universe of potential players from 1885 through 2009 in a large but finite number of team combinations and potential ballpark settings. WIS should adhere to the Japanese concept of keisan -- "constantly striving for perfection through incremental improvement."
Whenever WIS can do away with strategies that bear no resemblance to actual baseball, like killer fatigue strategies, they should. Whenever WIS can do something like normalize fielding, which captures a player's performance within the context of the season he played and then transposes it to a competitive environment peopled with players from 1885-2009, each with his own individual context, they should. Whenever they can bump up IP or PA to better simulate the concept that a real baseball manager better be prepared to field a competitive team for a full 1458 regular season innings, give or take extra innings, weather shortened games and bottom of the 9th innings in which the winning team doesn't come to bat, they should.
But this shouldn't disadvantage the gamer. The gamer may not give a d*mn whether updates in the game better simulate real baseball, but he or she should be in a favor of a game that is always changing, evolving and never static. A static game introduces a disagreeable level of competitive parity in which all experienced owners eventually draft similar players and devise similar strategies, and the only differentiators of success are the number of newbies or diehard purists who happen to be in your league who can't or won't adopt similarly successful strategies. Even the gamer who is winning hand over fist today should want to avoid that kind of endgame, because it will eventually drive him away in boredom.
Now the race is on to see who can adapt to the new parameters of the game fastest and seize the competitive advantage until the rest of the field starts to catch up and it's time for the next update, and that should be good for fans and gamers alike.
Again, I don't guarantee that my two cents' worth is actually worth that much, but you got it anyway.