Patterson, Hopkins make quick impact for Vikings, Texans

The Vikings have used four first-round picks in the past 15 years on receivers.  Two ended up winning the NFL’s offensive rookie of the year award.  The other one, well, didn’t. The law of averages would suggest that 2013 first-rounder Cordarrelle Patterson will end up closer to 2005 top-10 bust Troy Williamson than 1998 phenom…