The only thing I can figure is this:
Coleman has been taking reps with the ones in practice, and Batten has been getting good reviews this year at camp after a good camp last year before his injury. Perhaps they feel both are better than Moats at OLB? Both were on IR when Moats got his shot outside, therefore getting the playing time due to their injuries. With everyone healthy they all move back to their original positions from last year.
Moving Moats inside gives Moats a better opportunity to make an impact, I'm guessing Torbor gets cut at some point, and Moats & Sheppard are the 2nd string ILBs and perhaps eventual replacements behind two aging veteran ILBs.