The only way McGhee could get the sack by Wednesday is if he was found alone on the South Downs stroking the genitals of a tethered goat, and even then he'd probably get a shot at the Preston match...
I beleive a deal has been done between him and DK to review the situation in October hence the short term contracts up until then for players to prove themselves.
Come October if we are still bottom he will get rid of some players and bring in some more if DK has the money. If the money is not available he will walk.