Despite Carl posting his worst wOBA since 2003, some things from 2008 deserve proper attention. The quick lists:
Still an awesome defender (nearly a win)
Improved walk and strikeout rates, by extension a career high in BB/K rate (0.50)
Unlucky BABIP (a pro in the sense that it will improve next year)
Showed least amount of power since 2003 (Iso)
Over 30% O-Swing%.
Reduced steals: in 2007 Crawford attempted a steal in 27% of his times on base, that number went down to 20% last season. That's not a "getting on base" thing either. Although perhaps a change in running philosophy took place.