Is Dunn better than Smart? That's what I'm hearing/reading so trade Smart for Noel? Go with a defensive grinding team that can't shoot!
I believe Dunn is on a whole other level compared to Smart - not even close. The only area where Smart has an advantage over Dunn is physical strength. In every other aspect of the game Dunn is either on par with Smart (defense, rebounding, size) or significantly better (slashing, ball handling, passing, athleticism).
3 years ago Smart was better than Dunn was this year and they are the same age.
Also Id say Smarts a better defender and rebounder and Dunn turns it over at a higher rate.
Their overall stats are similar, but there are a few critical advantages Dunn has over Smart that makes him a far superior prospect for the NBA game:
1) Ball handling ability - it's a strength of Dunn's, and was considered a weakness for Smart
2) Passing ability - a strength for Dunn, and was considered a question mark for Smart
3) Athleticism - Dunn is an explosive athlete, while Smart's athleticism was questioned in 14/15
4) Shooting - Dunn has already put up solid 3PT shooting numbers two years straight, so he's proven he has potential to be at least an average (~ 35%) three point shooter at the NBA level, and he has a quality midrange game. After two years in the NBA Smart still doesn't look like he'll ever be a capable jump shooter.
These are all key skills for an NBA guard.