We have too many good young players on their way up to plunge into midtable mediocrity I think. Guys like Sokratis, Luiz and Laca are a bit shit but odds are that most of them will lose their places to younger competition next season anyway. Some of them already have.
The real question to me is whether we'll keep guys like Auba and let the youngsters develop under their guidance, or of we're going to keep repeating the biggest mistakes we made during the last two decades. I think the players we let leave will dictate our future much more than the players we sign in that sense. Losing Auba and Saka this summer would be worse than signing ten of David Luiz.