There was a manhwa I was reading where the Demon Cult Lord has a Righ Guardian, Left Guardian and Central Guardian.
The Billion trio is a starting to look like that but in a different way. You obviously have the wings and then Jinbei is the Rare shield. This was even implied when he stayed behind to deal with BM pirates in WCI. Jinbei should play the roles Rear admirals plays in real life naval warefare. Zoro and Sanji protects the flanks while Luffy steamrolls ahead.
The Billion trio is a starting to look like that but in a different way. You obviously have the wings and then Jinbei is the Rare shield. This was even implied when he stayed behind to deal with BM pirates in WCI. Jinbei should play the roles Rear admirals plays in real life naval warefare. Zoro and Sanji protects the flanks while Luffy steamrolls ahead.