Doesn't the fact that he can't stay in shape or play defense at 25 say something about the likelihood of him reaching his potential? Is he going to get quicker as he ages?
This of course is the key question. Last season, Luke was a little out of shape/under conditioned and a little banged up and he was still able to take a team that featured Kyrie Irving and PJ Washington as the #2 and #3 stars to the finals. If he can stay even close to in shape/healthy, he is an elite player who can carry a title contending team. Davis is not that and never was that. He is an older all star, all pro level player with his own durability issues.
DAL made the calculation that there was too much risk of Luka not staying in shape, not staying healthy to give a $350M contract to. I am not sure how much of a factor that Luka's defense really is or should be. Luka played enough defense to get a mediocre team to the finals. Last season, DAL played decent defense in the playoffs (better than LAL based on DRtg).
So DAL may now have a better defense but I do not buy that DAL has a better team. Davis, Irving, Thompson is not a title contending big 3 in my mind. We'll see. If Davis stays healthy, it is a solid team for sure. Wouldn't it be fun if LAL and DAL meet in the playoffs? Think that would be good for ratings? Who do people think would win this series?