Spring Training Attendance ... So Far

All the Cubs pitchers and catchers have arrived at the Cubs' spring training camp.  In fact, all of the players have arrived with the exception of Derrek Lee, Aramis Ramirez, Alfonso Soriano and Starlin Castro.  With the exception of future rookie Castro, the others are supposed to be leaderson the team.  Then why are they the only ones not at camp yet?  Shouldn't Ramirez, Soriano and Lee be leading the team by example and be at camp early? 

Soriano in particular, whose season last year was pretty poor, should already be there taking batting practice.  Others, such as Geovany Soto and Carlos Zambrano, have come back from poor seasons looking much more in shape.  So why isn't Soriano doing more?  Lets just hope he shows up with the right attitude.