It's just poor reporting. The article is merely listing players that have expiring deals.
No way does Ainge deal Quis.
Not for Robinson at least!
Not for anyone.
Not because Quis is too valuable, but the damage it would do to Ainge's reputation.
Daniels took less money to sign with us. You don't turn around and trade that guy mid-season, and not expect to get a black mark on your rep from agents and players around the league.
Of course, everyone already knows that Danny is a snake (right, 'Toine?).