I mean, yes, depth will always be an issue for BGA simply from an enrollment standpoint. But the same can be said for EHS as well. Only a select few (BA, MUS, MBA usually) have the benefit of platooning the players. After a point, it can't be used as a crutch anymore.
According to the TSSAA, BA will carry a slim enrollment advantage into this game - for what that is worth. Also, BA will two platoon a lot - especially on the line.
Division 2-AA
Battle Ground Academy, 392
Ensworth High School, 427
Brentwood Academy, 463
Hutchison School, 466
Briarcrest Christian School, 567
St. Agnes Academy, 608
Pope John Paul II High School, 635
Baylor School, 712
Harpeth Hall High School, 736
Girls Preparatory School, 784
Memphis University School, 828
Father Ryan High School, 870
St. Benedict at Auburndale, 983
Montgomery Bell Academy, 1140
McCallie School, 1304
Christian Brothers High School, 1778