Previous versions of Baseball Mogul had a problem with extreme outliers. Babe Ruth is the best example. Baseball Mogul’s rating system assumes that player performance almost always falls within about 4 standard deviations of the league average: this should cover 99.994% of all players.
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Unfortunately, Babe Ruth hit home runs at a rate that was 4-6 standard deviations above the rest of the league. In a simulation that produces a realistic distribution of outcomes, the chance of a result that is 6 deviations above average is about 1 in a billion (1,013,594,692 to be exact).

Yes. You probably already know that you can resize the main window as you can with most other apps in Windows, by clicking the minimize and maximize buttons in the upper right, or by grabbing the lower-left corner and dragging it until the window is your desired size.

However, I assume you're asking about the dialog boxes (aka "popup windows") such as the Lineup, Defense, Bullpen, Sortable Stats, etc. To change the size of dialog boxes, go to Options on the Tools Menu and change the setting for "Dialog Box Size":