My research shows that Jason Moore was with the team at the beginning of the year and wound up going to an Independent League team mid-July 1997. Possibility that they pulled his card from the set and inserted the trainer's card there for subsequent print runs (maybe?). The way the set is numbered, it's alpha order by last name and Moore fits perfectly at #20, whereas Barber does not. This is the only theory I can come up with.
I added the trainer. I also edited the Note/Note2 fields to indicate the variations, and used the additional numbering field that is enabled when the Note2 field is populated that way to make the player card 'a' and the trainer card 'b'.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).