The Celtics could win a chip in the next season, so they need top go for it. So they bring in a guy with Championship experience, who can bring scoring, defense, and all around skill next to an already formidable big 3. A Derrick White-Jaylen Brown-Jayson Tatum-Pascal Siakam-Kristaps Porzingis starting 5 would be terrifying on both ends of the court. They also dump a big contract with major injury concerns in Brogdon.

The Raptors should be looking to build around their young players, and a move like this could help them kic start that build. They would bring in a haul of picks they could use to further bolster their team. They could try and rebuild Holmes's value to flip further down the line, and despite the injury concerns Brogdon is still a competent point who can help fill that hole on the Raptors. They would go into the season with a Brogdon-Trent Jr-OG-Barnes-Poeltl starting 5.

The Mavs could jump in to help facilitate, as the Raptors might not want a center given they just extended Poeltl, so they flip Williams for another draft asset. Dallas get their starting 5 to protect the rim and attack on the pick and roll with Luka/Kyrie. They could run a Luka-Kyrie-Green-G. Williams-R. Williams starting 5