I agree DePaul Prep has to work on the academics a bit, but the north side let's say south of Peterson and east of Pulaski had had a huge hole for "normal" Catholic high school for a quite a while - and DePaul is beginning to finally look like a viable alternative. While great schools, Loyola and Ignatius will cost you an extra $40K over four years vs. what schools like Pats, Res, and ND cost. And those schools are a bit northwest for kids in north side. They draw a bit, but my guess is they will lose those kids in their non-core territory to DePaul. And some in their core territories as well.
I don't think DePaul is really hunting for FXW and Sacred Heart kids yet. And they are beginning to pull Clements kids already - granted in small numbers. GT historic feeders are where they will begin to draw again - think Northside Catholic, Hilarys, Mathias, Andrews, Queen of Angels, St Eds, St Bens, etc.
Here's anecdotal support: QofA sent one kids to Gordon/DePaul over a six year period a while back. Starting a few years ago they started sending 2-3 a year. Then four or five. The 2019 class is sending twelve to DePaul. That is at the expense of Loyola, Iggys, Lane, and Whitney (none of which will really miss them), and also at the expense of Notre Dame, Pats, and Res (who WILL miss them a bit). With the new facilities this trend will likely accelerate at QofA and other north side Catholic grammar schools. DePaul has a huge area to draw from that is pretty much completely undersevred for the mid-range Catholic high school experience. I just hope they keep it in the mid-rage and don't go the Loyola/Ignatius route.
Oh yeah, and with numbers and a new field, that football team is going to get better too.