MLEs, translations of minor league stats to a major league context, were pioneered by Bill James. Conceptually, they are the first cousins of park neutral batting stats. Both attempt to adjust for distortions of the statistics created by the various venues in which professional baseball is played.
James found that by applying the appropriate park, league and level of competition factors, a player's performance in AA or AAA, translated to the big leagues, was a surprisingly accurate predictor of what that player would do in the major leagues.
James found that by applying the appropriate park, league and level of competition factors, a player's performance in AA or AAA, translated to the big leagues, was a surprisingly accurate predictor of what that player would do in the major leagues.
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