Problem is choices are limited. Biggest mistake has been not buying a full time quality CM/ACM. They believed that between Ceb, Willan and Partey the midfield could stand up ans leave the attack to Saka, Auba, Laca ( of course as per last season's form). Nobody could envision that Auba will miss fire so badly, Willian would turn up a complete dud and Laca will be inconsistent as he is. Ceb...same old...mediocre. But this is all in hindsight.
Besides there's of course calamity Luiz and his buddy Xhakha looming their heads every now and then.
That's why we are Up and Down and Up and Down...like the Vengaboys song.