For the Italy part, I agree he does his job in a 3 man defense here. But we really don't have a serious competition in seria a to not be able to move away and try new things.
And for the point that I want a tackler that is not what I wanted to say, I just want a decent defender for that position, the problem is that there is no one in the team or even in whole italy who could do a better job with controling the ball, passing and helping team control the tempo from a sweeper position(he learned two years playing it after all) while being a good defender.
So what I want is change in formation mainly, move away from the back three, because we don't have a proper replacement for him from the ball playing part and he is not up to defensive standards(not including tackling, defensive in general).
But with Conte who knows, like we don't have a replacement for Pirlo too, not even an adequate one, Pogba doesn't count, he is really not good as a regista, but we still choose to play the same, even when the personel is lacking.