Country: Iceland
That's why I said by the end of next season. So, at least one transfer window and full pre-season (although this pre-season is not ideal with upcoming EC).
He will most likely lose both his strikers next year. Then he has losers like Sokratis, Xhaka, Torreira, Özil, Luis, Mustafi to get rid of.
Giving him one transfer window to fix this squad is like asking a painter to paint Mona Lisa blindfolded with his hands tied behind his back.