It doesn't matter if Caldara is better than Bonucci, it matters that Caldara is 10 years younger, therefore his market value is significantly higher.
There can't be a straight swap, there is a considerable price difference, at least 15-20mil.
Imagine how much would we need to buy Romagnoli, this is what they practically getting.
If it's their term to accept the Higuain deal, then fine, but they should at least pay what's due...
At least that, we are sacrificing too much for Bonucci, noone should be above the team