It's not always to do with though is it?
Management is also about having contacts and trust in contacts that a player is decent (Brown trusting Dailly on Randolph). Hartley has played in England and has also played for Celtic and Scotland and is bound to have an array of contacts down south. Now I admit it is not an exact science and there is a huge element of luck involved also but the assumption that he knows little about the English leagues may well be wide of the mark. It's a reason that football clubs hold interviews so that they can find these things out and I am sure that it will be one of the things we will be looking for and if he does know very little then he will not get the job.
If McCall goes then I will have full trust in the board to find an able replacement because they do have a pretty decent track record.