Mandzukic in general is not a bad transfer at all and as I've mentioned a few months ago there were good reasons why Marotta purchased him.
But personally, my gripe has been that both him and Cuadrado are upsetting the balance of our attack which(initially) forced Allegri to bench Dybala and ofcourse play Morata in wide positions.
Personally, I think both Morata and Dybala should be starting together every week as I believe those two are our best attackers.
Yes Mandzukic scored crucial goals in CL but I still maintain he should be more of a rotational striker than our frontline CF.