Sorry, luuked, but I don't believe that the snap counts support your claims.. I believe after the Chiefs debacle, Richards was more of a sub for Chung than going in on sub-packages WITH Chung. The Patriots tried (and failed miserably) to mold Richards into a future Chung, but Richards just doesn't seem to be able to put it together.
New England Patriots 2017 Snap Counts | Pro-Football-Reference.com
Unfortunately, the Patriots were in a bad position tonight. They only had 4 CBs dressed (Gilmore, Rowe, Butler, Bademosi). Remove Butler and limit Bademosi to playing just STs in the 1st half and you're FORCED to put Richards on the field in Dime Situations. Situations that, normally, would see Jones or Rowe out there, not Richards.