Suggesting he was instrumental in winning the league last year completely ignores all the work done in the 3+ seasons to get the squad to within a few points of winning the league.
Of last summer's signings:
Kepa: shows no signs of being useful
Zubimendi: basically signed by his predecessor
Norgaard: already gone
Madueke: got time for him but if he doesn't start to deliver more end product, he'll look like £50m worth of cannon fodder
Gyokeres: reported as part of a potential swap deal
Mosquera: super pick-up, particularly at the price paid.
Eze: like him but still has work to do to justify his price tag/signing
I said at the time that the signings weren't without merit but weren't exactly 'empire building' investments and I stand by that. Let's see what he gets done this summer (Guimaraes is a good pick-up, Tzolis okay but big gaps up front still need to be filled).