Every dynasty manager is looking for the next big-time rookie sleeper. Thor Nystrom and Derek Brown have scouted this year's draft class for the most promising underrated talents that could bring unexpected value to your dynasty team. From a sleeper QB who could be the next big thing, to explosive RBs and WRs flying under the radar, we've got the scoop on who to target late in your rookie drafts or from the waiver wire.