You are right, this is the main question now. WHO? All the media allready sees Lucky back in the saddle, but it will be really tough one this. No secrets there, I belive the majority would give everything to see him back. I'm one of them - Srecko above all!
But it will be more complicated than that I think. He's worth his money, no doubt about that and will not accept this so easily. Plus as papers tell us, he has two club offers to decide upon. With Srecko we know what we would get, a quaranteed quality!
Other option, Oblak would also be good, but as you said it would be very unfair to take him away from out U21 NT as he really started a great work there.
Now the most likely scanario suggested by the media is that Gugolj will take over for a short term, just so that he prepairs the ground for Katanec who would than start the work. By prepairing ground I understand getting ridd of Zahovic, Pavlin and shuch, doing the dirty work. This must be done, sooner or later, and no question about it, it's better done now! Somehow though I'm not that much in favour of this move, it would be much better if we started of with Srecko straight away.
About Soskic I didn't hear anything.
What would be other options? I wouldn't like any forigner to take over, OK maybe Osim but we all know he refused any possibility of doing that in the past.
So we are down to Srecko and Brane?