Time to drop Patrick Peterson? (return yd league)

What's up with Patrick Peterson?  I'm in a league that rewards for kick return yards.  Peterson was a boss last year.. obviously the TDs helped.. now, is he droppable?  He was actually putting up slightly better IDP numbers than last year up until 3 weeks ago, despite the significant drop off in return yardage.  The past 3 weeks have been dreadful.  Now he's on a bye week.

Thoughts?  Who should I target as a potential replacement?  Should I drop him or would you hold onto him?

Scoring System:
 solo tackle: 1pt
 pass defensed: 1pt
 int / sack: 3pt
 fumble forced / recovery: 2pt
 return yards: 25yds = 1pt
 TDs: 6pts

Available DBs (sorted by current ppg):
 Devin McCourty, NE CB
 Thomas DeCoud, Atl S
 Patrick Robinson, NO CB
 Stevie Brown, NYG S
 Eric Weddle, SD S
 Antoine Winfield, Min CB
 DeAngelo Hall, Wsh CB
 Buster Skrine, Cle CB
 Johnathan Joseph, Hou CB
 Malcolm Jenkins, NO S
 Quentin Jammer, SD CB
 Sean Smith, Mia CB
 Glover Quin, Hou S
 Alterraun Verner, Ten CB
 Ryan Clark, Pit S
 Eric Wright, TB CB
 Mark Barron, TB S
 Jordan Babineaux, Ten S

Never been a big fan of Peterson's from a fantasy POV. He's just too good a CB to get a lot of tackle opportunity/balls thrown his way. Teams are kicking away from him now as well. Plus, as he gets better on CB, the Cardinals will be more hesitant to use him on special teams fearing he will get injured.

I'd dump him and pickup Winfield (he byes out next week) or Jenkins.

Thanks,

I am trying to move peterson, and picking up Jenkins / Winfield for this week (pending waivers).  I pretty much agree on your assessment all around.  Just wondering - last season Peterson was such a great IDP in our league because of the return yards, but it really seems to be down this year.