Hoop Blah Sa appeared to fall out with Berg because he wasn't built to play upfront on his own, and Berg was looking to play that way, so I think it's unlikely we'll see him at the top of that line up. I think it's much more likely we'll see Sa leading the line with Pogrebnyak (with Cox as cover) playing just off him.
If we get Donaldson he'll probably be the one to play up top on his own if Clarke wants to go down that route.
I can't see Clarke moving away from a back four either. It was fashionable for a while, and obviously Liverpool used it to decent effect more recently, but Clarke strikes me as a bit more old school than that.
Yeah not expecting it. But it would suit Gunter and Obita a bit better. And a few others would be perfectly fine in it.
Switch out Cooper for Pog (or Donaldson if he signs) in a 4-4-2 and I wouldn't be surprised if that was our starting line up in August. With a keeper obvs.