What happened: The Mavericks are adding Joe Boylan to Dusty May's first NBA coaching staff, per Jake Fischer's reporting. Boylan, who has spent time with five NBA teams including Memphis, had been expected to reunite with Taylor Jenkins in Milwaukee before pivoting to Dallas. He arrives alongside Willie Green, tabbed as a top assistant.

Why it matters: May is a first-time NBA head coach making the jump straight from college, so the experience around him matters. Boylan's multi-stop resume and Green's head-coaching background give the bench veteran voices as Dallas builds its staff for the 2026-27 season. Losing Boylan is a setback for Jenkins' new Milwaukee group.

What to watch: Watch for the Mavericks to finalize the remaining assistant spots and formally announce the full staff ahead of training camp.