Mills would be perfect, he's been awesome for Worcs and has been the brains in that backline for a while now. Great to see his injury run finished at last. He won't be involved with Eng either but is good enough to have been considered in the past but for the injuries.
How long is Sopps here for now? If he's off at the end of the season then we don't need someone to counterract his deficiencies anyway.