Welcome back to the NL-only and AL-only pickups column. Each week, I'll look at five players who are under 15% rostered in Yahoo! leagues and who can be considered as options to add in deep-league formats, such as 15-teamers or AL or NL-only leagues.I'll also include a recommendation for what to do with each player on your roster. And lastly, I'll take a look at some of my picks from the previous week to see how they're performing.Without further ado, let's get into it. Starlin Castro - ...