None of players have left yet. I expect we will have a new manager end before the end of the month which is typically when most players contracts expire and the horse trading starts. Thanks to the joys of the transfer window, most players hold out until closer to the start of the new season to assess what their best offer is likely to be.
I always said the Europa games will be, in effect, our pre-season. While it's more than likely we won't have our final squad in place by then, I'll only be worried if we haven't beefed up the team by the time the SPL kicks off.