Thing is mate to get Bellotti in on a free you'd have to offer him massive wages, which means if he was a bust, we won't be able to ship him on.
Just look at Mina, Jamo, Allan, for evidence of that, two we are stuck with and one we couldn't manage to ship him off to any semi serious league due to the wages.
Bellotti is also a completely different type of cf to DCL, meaning players you bring in to suit one are likely not to suit the other.
We need a focused recruitment now to a style and to a purpose and to finally avoid just signing players because oh they look good for x,y,z without thinking about where they'd actually fit into the team structure.
As you said earlier about cb needs - we seem to have done that - identified what we need,what we lack and how to address that as part of a plan with current players integration in consideration. It's why Tarkowski is a signing that makes complete practical sense and gives hope we are finally doing it in the right manner.
Next up is cm, where we need two distinct types of players (3 really but unlikely I guess)