Entertaining a Hayward trade is fine. But I'm sorry, Andre Drummond is NOT the guy they should do it for. Obviously if you look at stats, Drummond's looks better than Kanter, but I mean, is he really that big of an upgrade over him? Kanter to me is a cheaper version of Drummond and I feel he'd be putting similar numbers if he plays a ton. And Drummond has questions on defense like Kanter (at least against the likes of Embiid, Giannis, etc.)
And while I like Gallinari, I really don't think we're improving all that much by trading Smart or Hayward for him in a package. Marginally, sure, but it doesn't "move the needle".
I like Adams too, but again, are we really improving that much at the expense of someone like Hayward, as frustrating as he's looked lately.
Truth is, I think we're better off keeping Hayward and hoping he can get back to his pre-fractured hand form. I mean, that team we saw before his injury had us thinking "Big 4", and not in a joking way.
Bigs certainly help win championships, as the likes of Gasol, Ibaka, Bogut, etc. have shown us over the years. But those guys aren't often the primary guys who lead the team to the chip. It's often wings nowadays