It often takes years to accurately judge a trade. Generally, the implicated prospects and veterans must mature and retire before we can conclude anything.
The following 2012 deadline deals are exceptions. Teams that executed them already have regrets.
All exchanges completed between the All-Star break and non-waiver trade deadline were considered, but only the most tragic gained inclusion.
These recently moved players haven't performed as anticipated with their new teams. If tiny samples thus far are indicative of what's to come, various MLB executives will have tough questions to answer.