10 PA's is not alot. Your 7 AB example would have very likely included 3 walks, which would have put your example player at 10 PA's so that rule would not have applied.

Besides, someone with less than 10 PA's isn't going to make a season long impact anyway.

However, if we are going to follow your argument/point on the defensive appearances side (the point of this thread), let me do some calculations:

10 PA's (the low PA cutoff) is roughly 1.5% of the typical PA's that a full time player will see (~650 PA's).

If a full time player plays a position for 162 games (which isn't likely figuring for a few rest days, minor non-DL injuries, etc), and the corresponding "low defensive appearance limit" would be the same 1.5% of that full-time player total (if we are following the same guideline for the low PA limit), then this would equal a whopping 2.5 games.

So, by that logic, any player that sees ~20 innings at any position would be above a "low defensive appearance" limit.

Of course, the main player in this discussion (Glaus) would be under this limit, but there are hundreds of other players who had ~20 innings at a position (ie. Sweeney as a catcher in '99, 4 games, 22 innings) who should be allowed to play that position in PB without penalty (if such a penalty becomes a reality).

Jon