i'd say sub .500 would be a failure and anything above .500 a success.
with an injury free season, i see no reason we can't at least get to 16-16 in the regular season.
shields will be a legit 18-8 guy and white, morrow, mcveigh, and watson are big time additions.
tai, benny, fuller, and hammond should all be improved as well.
i'm not sure what to expect out of bakari and jacobson, but it sounds like they are quality backups at the very least.