Alex Caruso is an elite defender but he is also about to be 30 years old but he is also on a great contract. he would be a solid improvement over green in terms of defense but green still has potential to be a better player overall but defensively Caruso would give the mavericks a guard who can potentially lock down a point guard or shooting guard to further improve the defense.
personally I would not trade green for Caruso simply because the mavericks have an abundance of guards and consolidating a guard and a small forward for a top notch big wing would be the better situation but the fact that the bulls may be blowing the roster up soon could have teams looking to take some of their talent.
Maybe, Caruso is a much better player but has significant issues staying healthy and at his age that’s not going to improve. We’re playing Green more as a 3 due to our depth at guard where his motor allows him to play a little bigger than he is and I’m not sure we’d get the same level of energy from Caruso. Basically…I’d see Caruso as more of a Exum/Hardy but bigger minutes replacement than the role Josh Green is playing.