Until this year, I thought we'd had seriously tough spring practices & preseason practices. This year, we fatigued easier than we should have. In other years, I thought we were pretty well conditioned.
Anyway, with enough periodization (won't explain that here), you can wear yourself out silly without having to worry about injury. If we have trainers that know what' they're doing (think more Cohen and less Ron Polk) we can get to new levels in strength and conditioning. It wouldn't surprise me if Croom & crew were way off into ineffective old school methods.