My favorite football stats site Football Outsiders has some pretty nifty breakdowns of each teams pass defense versus each different receiving option on each team they faced.
Here’s where the Pats rank on each:
vs. #1 WR: 27th overall
vs. #2 WR: 27th overall
vs. Other WR: 4th overall
vs. TE: 25th overall
vs. RB: 29th overall
Say what you will about slot corner Jonathan Wilhite but these numbers do point somewhat positively toward him.