personally, don't think it's a need.
white, brogdon, pritchard, and davison can handle the playmaking pg role. i think they need wing help, so who's the 5m wing they can get?
I agree with this. For guards, we have White, Brown, Brogdon, and the 4th is Pritchard.
For wings, we have Brown and Tatum, the 3rd is Hauser.
For Bigs, we have Porzingis, Horford, RWill and for the 4th Kornet.
To me, what you are looking to upgrade is Pritchard, Hauser, or Kornet. Which is the greater need? To me, clearly the biggest need is a big. Not only is Kornet the weakest of the last back up options, but the core rotation of bigs has the greatest risk of injury.
Then second, is wing. I think Brogdon would play some wing too but as we stand, we would expect that Hauser would need to play some rotation minutes.
For the guards, there is already debate as to whether or not there will be enough minutes for Pritchard. This is the last place we need an upgrade.