This actually could be interesting, as the popular choice for starters may not be who we think. If Ines can contribute, even for 5 minutes, Geno may look at all the options at his disposal and surprise us for starters. He may want to ensure that we have Quality players coming off the bench to keep the level of talent comparable to those already on the court. I believe we have more than 5 players who are good enough to start, so practice will mean more than ever to impress the coach.
I think you may be isolating the most likely role for Inez. Namely around 5 minutes a game as the fifth "guard" option, counting the 3 as a guard. Clearly regardless of who starts, we have four guards who will consume almost all of the minutes from 1-3. But a four player rotation for three positions is extremely hard to pull off. You wind up taking some players out before they need a rest, and the last starter to come out might be gassed before they get a blow. You can't take out the second starter until the first one sitting has had enough rest to return, and then the third starter to come out has to wait for the second one to be rested enough to return.
So even when the 5th option is not particularly good, most teams use a 5th player at least on a limited basis, because the logistics for 4 covering 3 positions is very difficult and a significant disadvantage. Right now our options for that 5th player are Inez if we want a true guard, or Aubrey or Ayanna if we want to use a more natural 4 at the 3.
Those 3 players are competing for those limited minutes at positions 1-3. But remember if any of the main 4 (Azzi, Caroline, Nika or Lou) miss a game, that 5th small option becomes the 4th option getting quite a few minutes, and we go to the second best small option from Inez, Aubrey and Ayanna as the limited minutes 5th choice.
I know it seems strange saying a PG Inez is competing for playing time on the perimeter with two PF's Aubrey and Ayanna, but that is the reality. It depends on what Geno thinks is most important, and it does not rely simply on who is the best player of the three candidates. By that standard I suspect most, including me, would consider Aubrey and Ayanna to be far more talented players overall than Ines.
But however good Aubrey and Ayanna are as 4's, they are probably significantly less valuable as 3's. If you use them at the 3 you move the others down one position, so Caroline or Lou would play more at the 2 (which I do not think would be a problem), and Azzi would need to play more PG. While I think she could be a good PG, I think she is significantly better as the SG. So using Aubrey or Ayanna as the 5th small is using them somewhat out of position and also .
Inez on paper is the lesser of the three candidates, but if she does get playing time it will probably be at her natural position and the others can stay in their's, That is her potential advantage. She doesn't have to be quite as good as even Aubrey or Ayanna are as 3's because Azzi can stick to her natural and best position.
Given the reality of injuries, I think the odds are high that for at least a few games this year, that 5th player will get 15-20 minutes and we will have to use a 6th for limited minutes. Ines may or may not emerge as that 5th option, but I am glad we got her, and now have a true guard option for that role, in addition to our converted bigs. Time will tell.