Report: Joe Boylan set to join Dusty May on Mavericks staff as team-building continues

Dallas Mavericks head coach Dusty May’s staff is still taking shape, and a new reported addition could further define the team’s coaching identity for the coming season. According to Yahoo Sports, May is adding Joe Boylan to his bench group, with the report coming just days after initial reporting that former Milwaukee coach Willie Green was a potential first staff hire for Dallas.

If the move holds, Boylan would join a staff that is already being framed as development-forward. The Mavericks have emphasized continuity of instruction under their new leadership, and the reports suggest May’s coaching search has leaned toward assistants with reputations for translating on-court learning into game plans, not just game-day tactics.

Boylan’s background, as described by a Mavericks-focused outlet, includes work that began in the early 2010s and moved through multiple NBA staffs in assistant roles. The same reporting notes that his career has also involved G League responsibilities that filled gaps between NBA assistant stops, and that he has worked alongside coaches such as Mark Jackson, Alvin Gentry, Chris Finch, and Taylor Jenkins.

That last connection is relevant to the specific “Bucks” angle mentioned in the Yahoo report. The Milwaukee coaching staff question has been part of the off-season chatter, and Boylan was previously tied to the Bucks in some coverage. However, the May-to-Dallas reports indicate he is instead trending toward Dallas, at least in the near term, as May continues to lock in his support system.

The most consistently discussed theme in Boylan’s recruiting is player development. In the Mavericks outlet’s reporting, Boylan is characterized as a “player development guru” and the founder of Cognition Coach, a method positioned around helping players problem-solve in live action by teaching them to self-organize and pivot based on what they see during gameplay.

From a team-building standpoint, the reported addition fits how NBA coaching staffs often evolve when a new head coach takes over. The head coach sets the cultural tone and system boundaries, but the assistants typically determine how quickly players learn concepts, how effectively they translate film work to practice, and whether those messages stay consistent across guard, wing, and big groups.

Still, confirmation matters with staff reports. As of publication, this remains reported information rather than an official league or team announcement in the material gathered for this story. The Mavericks and Boylan have not been independently verified as of this writing within the sources reviewed here, so the practical impact is best viewed as a developing situation rather than a finished personnel transaction.

What to watch next is not just whether Boylan’s role is finalized, but also how Dallas’s remaining staff composition fills out the skill set around May’s core message. If the reported emphasis on development holds, Dallas fans can expect more emphasis on structured instruction during training camp and a clearer division of responsibilities among assistants as the season approaches.