By "players previous seasons stats" you mean career stats? So you want to see his career stats in the free agent central table?
Regarding career stats: we donīt store all available season stats as career stats, only basic stats. We try to have as many as possible and I think we already go pretty deep in this area but we also have to take memory usage into account. But we might always add more to the career stats if it makes sense or a lot of people really miss stat X or Y.
