With Zinger out and Al being old, I think they still another big, probably another one and a half, Tillman would do as one, I hope they give anton a 2 way they way they can keep Oshae. I would be interested in Dominick Barlow, his option was not picked up by the Spurs
Whoever they bring in has to be comfortable with only playing occasionally. Al remains one of the top 6 on the team. He keeps himself in excellent shape and really hasn't noticeably dropped off. Any plan B for him isn't going to play much if Al stays healthy.
If Al has to miss games, they'll probably just adjust their defense a bit with Tatum maybe assuming some of Al's coverages and Kornet or Queta getting more minutes.
I will say that Brissett and before him Lamar Stevens played the role of part timer very effectively. I'd rather someone in that role be an energy and hustle guy vs a skill guy who can't find his rhythm because he's not getting enough minutes.