Why would Masai leave? Easy. There's going to be an opportunity for him to take an ownership stake of the Wizards moving forward if he accepts that deal, something he will never get the opportunity to do with the Raptors.
No doubt about it the Raptors are the better situation from a managerial and organizational standpoint, but from a financial standpoint being given the opportunity to get an ownership stake does not come often.
As for the Brooklyn Nets, I just have one question: why? Why are you targeting Kyrie Irving when D'Angelo Russell did what he did last season? Wouldn't you rather build around the 23 year old instead of the 27 year old with supposed knee issues?