The first thing I would do is lose that name. This isn't a religious basketball league. It's a D1 league in the NCAA. Religion has no place in it.
That said, I'd change the name to The Coastal League, or the Eastern League. I really don't care what the name as long as it welcomes the best teams.
Gonzaga and St.Mary's are simply too far away. This league needs to consider that rivalries need to be retained, and new ones need to be formed. Butler can work. VCU as well. Xavier certainly deserves respect despite an off year.
That's 10 teams. 5 good ones, and 5 that need to return to their former glory.