I think Dortmund will try to get an experienced coach after 2 interns with Terciz and Sahin didn't work out.
If Xavi gets the same support Ten Hag received, he will turn Manu around.
They won't be the next City ir anything, but they will be back to top 4 at regular basis easily with him.
I would give much, much for an honest Xavi interview right now. It's basically his squad apart from Olmo, which he didn't trust and said not to expect much.