As far as I can tell, all 24 players who had autograph/memorabilia cards in the original set have the non-memorabilia cards as well. I've managed to pick up about half the set so far. Here's some example cards:
The backs of the cards are an improvement over the autograph/memorabilia cards in that there's a little bit of biographical information as well as a write up of the player's performance during the USA vs Japan All Star Series last July:
This is certainly a much more affordable way to put together a complete set of these players than trying to do it with the autograph cards. I've seen two complete sets on Ebay - one for $80-ish and the other for $100 - but I've only spent around $30 on the 12 cards I've gotten so far.