We certainly learned Martin and Roden are backups. Morris and Gomez are good, though RP is unstable year over year often. Bradley is legit. Lee and Culpeper likely are. Clemens is a backup on a good team. Keaschell can hit but not field.
Those are the things we learned. I think.
I still think the jury is out on Lewis. Buxton can't be relied on, so one of your everyday OF besides him needs to be a legit CF..... You basically must have three legit starting OF in addition to him on the roster.
We also learned this organization has learned nothing about playing with a short bench.