For instance, the 26 yard one hand catch by Jackson- McCourty is in trail tech and Barrett is the single high safety and Arrington is the NB, and you can watch this highlight on NFL.com (if you can tolerate the 30 seconds ad every other freaking highlight) or on TV. What you'll see is Arrington cradling his arm for a hopeful INT., instead of delivering a massive hit on Jackson, and Barrett is very late to the play. That's been symptomatic of the safeties situation- and McCourty being "abused" is, I think, more of a byproduct of the opposing OC recognizing that he is not getting competent help over the top. Also two straight games against pro-bowl caliber WRs are not helping him.