He runs enough..I wouldn't say "plenty".even then wouldn't you expect the more athletic and faster Shields to be the guy playing the man to man? Yea, I would.
I think "plenty" is apt.
Capers is typically top 5 in blitz frequency, and only a small percentage of those blitzes would qualify as the so-called "zone blitz" where a lineman (or Peppers as was the case last season) drops in coverage.
Further, Capers ran a lot of single-high safety in the latter stages of last season. Having Dix covering the #2 perimeter corner's back with Shields on the island on every snap makes the defense predictable and exposes the intermediate-to-deep middle to all manner of routes from the other wide out, the slot or the TE.
While I would expect to see Hayward takes snaps there especially early in the season, but I don't see him as an every down player at cover corner. A lot will depend on down-and-distance and the match-ups.
The Packers lost their #2 and #3 cover corners, with solid players at the other backfield spots, and then turned around and drafted DBs in the first and second rounds who are perceived as scheme-versatile. That should not be viewed as coincidence. Further, Hayward is a free agent after 2015. You can expect he'll be looking for 3-down money, and he'll likely get at least "starter" nickel money, which is not chump change these days.
While I wouldn't anoint either Randall or Rollins as a 3-down answer at the perimeter, I think the Packers will be disappointed (as will I) if either of these players (Randall in particular) does not emerge as that guy before the season grows too old, just as Dix solidified free safety as the season wore on.