I'd be inclined to give Khadra a go at LWB. He's filled in there before for Blackburn.
Two home games coming up, we usually dominate possession at Bramall Lane allowing the wing backs to push further up the field, so hopefully it isn't too difficult for him.
Baldock - Basham - Egan - RND - Khadra.
Would rather be solid and compact in the middle with a weak link out wide, than bring an inexperienced player into the back 3 where a wrong step could leave us wide open.
Also, two further bonuses (1) Khadra gives us a really positive attacking outlet from that area. We've already seen how good his right footed in swinging deliveries can be. (2) The lad could do with some game time.
It's certainly not a long-term solution but maybe a stop-gap until one of the left footers, or Anel returns.