As Basis, we assume the Mavs as an Playoff-Team, which is gone in the 2bd Round of the WC Playoffs.
To get more competitive, they need a Starter @3, in best Case who can score 20 pts every Night. Also a Backup PG, wo can play 15 Minuts every Night a get 10 Pts/5 Ass. Last Point - more Proven, athletic Depth.
Eyes on Kuzma. Mavs want him this February and get him now. As Sign@Trade they get Buddy Hield (3/45), Tobias Harris (3/48) and Spencer Dinwiddie (2/20) via FA.
Yes, i know it's possible to dream and perhaps to get Siakam, OG or LeBron. I would love to see one of them in Dallas. But really realistic, i don't think so.