I'd imagine we plan on using him on 1st and 2nd down while putting in Lester or Godfrey on 3rd.
The one thing I'll say about Harper is that he sucks in pass coverage. If you look at half our highlights against the Saints, you'll see Harper getting beaten like a drum by a TE, WR or RB screen. His one saving grace and the reason I think he'll flourish here in Carolina is a combination of a dominate front 7 he never saw in NO coupled with the fact this McDermott defense could make a below average safety look good and an average safety great. I expect to see Harper blitz constantly and rack up somewhere close to 90 combined tackles and at least 5 sacks.
I'd also argue that DeCoud is an overall better center field FS than Mitchell. What he lacks in physical intimidation will be made up with less deep blown coverages and allow us to mask our CB's.