There might be a reason why the Nets haven’t officially announced their reported hiring of Ime Udoka: their owner is being urged to cancel the deal.
nets show they have no morals with udoka hiring

NBA Insider Marc Stein reports Nets owner Joe Tsai is being told by “strong voices” to halt the Udoka hiring. The Nets have already experienced an immense amount of turmoil this young season with Kyrie Irving’s promotion of an antisemitic film on social media, and his refusal to apologize for nearly a week. (Irving finally apologized Thursday night after the Nets had suspended him indefinitely.)
The Celtics suspended Udoka for the season right before before training camp, due to his inappropriate romantic relationship with a female subordinate. There’s been a dearth of additional information about the relationship, outside of reports that Udoka made “unwanted comments” towards the woman.
Last week, Marcus Smart and Jaylen Brown voiced their displeasure about Udoka’s reported departure in interviews with the Boston Globe. The Celtics aren't expected to seek compensation for Udoka, even though he’s still under contract.
But now, that might be a moot point. The Nets named Jacque Vaughn as their interim coach in the wake of their decision to fire Steve Bash. Brooklyn is 4-6 this season.
The Celtics, meanwhile, are 6-3 under interim head coach Joe Mazzulla.