I was looking at WAR calculations on the site, and I saw that -- according to the glossary -- the Tango-derived +12.5-C, +7.5-SS, +2.5-2B, etc. positional adjustments are applied to WAR, and scaled to 162 games.
Then I saw that some players, ones who played the entire season at the same position, snagged a higher-than-normal positional number. For example, Derek Jeter has never played any position other than shortstop. The glossary states that a 162-game season means a +7.5 positional adjustment. In 1996, Jeter played less than 162 games (157, in fact), but gets a positional adjustment of +8.5 for the regular season. Why is that?