One of them already has a card as a position player...Miguel Montero pitched in a blowout game against the Mets in July.
Of the remaining 13, seven pitched in ten or fewer games. You can't expect a card for them.
The two with the most appearances were either released or traded during the season.
The other four made between 10 - 20 appearances. The most noteworthy would be Mike Montgomery, who made the final pitch of the season for the Cubs.