Salzburg are already very happy that Jaissle brought stability to the team after what Marsch did. It was spectacular, but not always successful.
I don't see Marsch in the mix, he is clearly worse than Hasenhüttl ever was, and he wasn't seen as good enough for Leipzig to go forward, so Rangnick let him go.
To the Jaissle thread!
But seriously. I see your point but I'm more on the lets give the younger managers time, half a season seems a bit short.