There are legitimate points on all sides of this argument, which essentially comes down to whether Carondelet has met, matched or exceeded expectations recently and/or in its history.
So first, though, the crux of the discussion is the expectations. On the one hand, there are those who say Carondelet is the only full-service Catholic girls' high school in a large geographic area that contains many very talented basketball players, and as such has a major inherent advantage over other public and private (it's cheaper) high schools -- assuming of course that it recruits those players in one manner or another.
On the other, there are those who compare Carondelet's record to other public and private high schools in the area and believe that the level of success is impressive.
(This kind of discussion is why I think it's important to work from the top down in any enterprise in terms of what you're setting out to do -- and to communicate the "mission statement," if you will, to everyone. The overall philosophy of an organization should be thought out, discussed and made clear so that there's minimal confusion, and those who disagree can make a conscious choice to opt out or stick around. For example, on my fifth grade team this spring, the first thing I said was "This is a developmental team and everyone will play equal amount of minutes" -- and that gave everyone involved a chance to decide if they wanted their money back.)
I think the issue at Carondelet is that within the school there's no clear statement of what the girls' basketball team should be. Should it be a successful high school program that plays at a high level? If so, then all is well. Should it be an elite high school program that plays for and wins state championships on a regular basis? If so, there's room for improvement, and naturally that comes back to the person in charge.
Then again, who is in charge? The head of school? The AD? Elgin? The disgruntled parents?
To me, the head of school should make it clear to all involved whether Carondelet is doing as well as the school expects, and if so, the unhappy parents need to either transfer or accept reality. Or if the head of school wants the team to be better, then that needs to be made clear as well.
For me, the program is fine as it is. This is high school sports, after all.