I think it could definitely go either quite well or terribly wrong. I can see England losing to any combination of Russia, Wales, and Slovakia, and also getting 3 wins from 3. Or anything in between.
Yeah I mean even 4 centre backs wouldn't make it better it's just I'm not comfortable with any combination. Cahill-Smalling? Smalling-Stones? Cahill....-Stones *shudders* It's not Terry-Ferdinand that's for sure.