[T]he Patriots have an elite free safety in McCourty ( 10.0 at the position last year including playoffs), and a number of safeties with unique skill sets: Wilson is a smart veteran who can contribute close to the line of scrimmage, Gregory is a nice compelemnt to McCourty’s single-high looks, Wilson can stick with tight ends, while Harmon has nice range in two-high looks. Belichick mixes and matches on a week-to-week basis as much as any defensive coach in the league, so look for him to tap into the various skill sets in his defensive backfield.