I'd book it as Rollins getting victories every week against random mid-carders for a month just so people are familiar with him, have Cole compliment him every week like he does Miz. Say he isn't getting the recognition he deserves. Teddy Long keeps refusing him a shot. Eventually Cole manages Seth (to do the speaking) and would book Seth absolutely dominating the mid-card and have a long IC reign. Appearing regularly on SD and RAW, each match doing something incredible. Kind of a show-off gimmick but not like Ziggler. That way the IC is relevant again (after Rhodes would of left it by this point). I wouldn't go with a stable because it's too soon after Nexus. I wouldn't have any stable at the moment unless it is Nexus returning. Anyway back on track. I'd then pair him as the IC title champion with perhaps Dean Ambrose to become the sick-twisted tag-team that takes over both shows. Similar to Nexus, interrupting random matches and just beating on people. Dean can cut the promos, Michael is their manager. Really emphasize on the crazy-gimmick, like Dean Ambrose reminds me of Joker from Batman, play on that.
That way, IC title (still defended regularly, it's not defended enough atm) and tag-team championships are both relevant again.
Eventually they'd split up going separate ways and moving on to main-eventing of both shows <3.