I'd keep a minimum of 6 from the team that started against Liverpool.
Probably keep in Lowton, Vlaar, Westwood, Delph, Gabby and Andi. I'd also be tempted to start with Okore to allow him to start to build up an understanding with Vlaar.
Throw in Steer, Bennett, Tonev and Helenius and we should have too much for Rotherham.