I think an ideal roster size would be closer to 13, and that would include one third string guard, wing, and big who were capable of being passable emergency backups when needed. The last two seasons have shown that what appears to be enough on paper can conflict with reality in a big way.
Last year we had 6 very good guards going into the season. Maybe even 7 if you wanted to count Aubrey as a guard, and at one point last year 6 was clearly not enough because three of those guards were out, we had no backup guards on the bench, and we had to use Aaliyah at the 3. This year speaks for itself.
I think we all like to project a lineup when fully healthy and what every player's role will be. When we do that, we frequently project third stringers to get mop up minutes only. I don't know what normal is with any precision, but I wouldn't be surprised if missing 1 rotation player per game isn't closer to average than having everyone healthy. I am counting season ending injuries in that estimate, so with Paige and Ice this year we start with missing two rotation players each and every game.
If you don't have season ending or lengthy missing stretches, maybe with an ankle twist here and there, you might wind up averaging less than 1 missing rotation player per game, but needing third string players to occasionally play a significant role during the season is more norm than exception.
The problem is not many players will accept that role. Seems to me there are three main approaches here. You can do your usual recruiting of top 50 nationally type players, tell them they all can compete for a rotation spot, but you need to be in the top 8-10 to get regular minutes. The good news is you probably then have excellent third stringers. The bad news is you can't expect them to stay.
Another option is the walk-ons. There you get someone who is likely to just be happy to be part of a famous program, get their 2-3 minutes in late game blowouts, be good hard working practice players and teammates, and not be a problem gripping about minutes. The downside is you are in trouble if you have to use them in a big game.
A middle ground is a pretty good player, perhaps not a usual top 50 or better recruit, but someone who feels happy to be part of the program even if they never achieve rotation status, but a player that would be way better than a walk-on if needed. Ines might be that type of player. She was recruited to be a better plan B or plan C option than the walk-on alternative, and she may fill that role pretty well.
A few years back we had a couple of players that I think were recruited for that kind of end of roster role, namely Kyla and Molly. Above average recruits, but nowhere near the usual Uconn top ranked recruit. If I remember right, we had a roster many thought was too big at that time, and how can we possibly find time for all these talented players.
I think the gameplan was for Kyla and Molly to be upgrades to the end of bench walk-ons like say Lawlor/Pulido before them. But Megan's highly touted 4 player class resulted in only one player having success, three transferring, and Megan leaving one year early. Before you know it Kyla and Molly were rotation players, so you never know.
Without having to wait a year, the transfer portal will be busier than ever. Just like with injuries, some injuries should be expected and some player movement should also be expected. Some of that player movement can even happen midseason, so with all that uncertainty and the uncontrollable luck of the draw with injuries, I think 11 or 12 is too low to head into a season with. Hope for the best and prepare for the worst seems like the appropriate strategy to me.