My 2 cents:
The strongest programs (the ones that routinely do well at larger comps such as Summit, Worlds, Cheersport, etc.) in my eyes are the ones that invest time, quality coaching, and choreo into the LOWER LEVEL AND BEGINNER TEAMS.
Look at any gym that is routinely mentioned as taking home tons of jackets and medals at higher levels and you'll see a program that keeps Worlds level energy (time, coaching staff, etc.) for their Preps, Tinies, Minis and Level 1s or 2s.
They don't treat those levels like an afterthought. They get quality coaching and choreo on same level that the higher Worlds and Summit teams get. They build their powerhouses by celebrating kids, having high standards from day 1, and developing talent from the ground up.
Ex: If you look at the teams that make up Worlds top 10s, perennial Summit winners, etc. these gyms did not just have teams of talented Level 5 athletes just walk in off the street. For example: reflecting on a lot of the Fierceboard kiddos that have done well at Worlds. A lot of these kids did not just show up as talented seniors. They have been with these programs since they were tiny/youth/minis.