Debatable that he's not as good of a number 10 as Oscar IMO. Sure, Oscar has better defensive skills and might be slightly more rounded but Barkley is much more influential in the final third than Oscar is IMO. Barkley also has the right attributes to play Oscar's role in the team I think whilst I couldn't see Isco doing that at all, and Reus is not a number 10 whatsoever. They aren't the same age either at all... Oscar is 23, Barkley's 20. I'd be happy with signing Barkley provided he's coming at a reasonable price.