Just to catch up: There are eight players who were listed with the Biscuits at the end of the 2012 season and are not on a Tampa Bay spring roster.
Derek Dietrich, traded to Marlins
Omar Luna, signed with Dodgers
Shane Dyer, signed with Tigers
Kyle Lobstein, major league Rule 5'd by Tigers
Scott Shuman, minor league Rule 5'd by Giants
*--Before someone points out that he (and/or others) was on the disabled list and was not with the Biscuits at the end of the 2012 season, I'll be mind-numbingly specific. These are the players listed under "team statistics (current players)" at the end of the 2012 season for the Biscuits. The stats page includes players on a team's disabled list until they are activated. Same principle applies below.
I'm not going to list all of the end-of-2012 Durham Bulls who are absent because Triple-A guys often move on. But here are the lower-level guys.
T.J. Geith, traded to Astros
Braulio Lara, minor league Rule 5'd by Marlins