The roster is built for three point shooting. They didn't want a strong rebounder/inside presence. They had every opportunity to get one and didn't. It would be nice to have some resemblance of a big that could bang and score when the shooting is poor, if only for a few possessions.
I think the idea is that there isn't a need for this, because we have plenty of wings who can penetrate at will (Tatum, Brown, Brogdon, sometimes White) and plenty of shooting surrounding that, whilst maintaining an identity of ball movement 1-5 and playing suffocating defence.
The issue is, obviously, now we don't focus on the driving aspects of our offence as much. So many of our good looks from deep came from possessions where there would often be multiple instances of a ball-handler getting two feet in the paint, collapsing the defence, and moving it to the perimeter. There is very little of that now. The defensive identity has also withered away a bit, especially with how terrible Smart has been since returning.