Ruby is a strategist specialized on pre-defined team attacks (
She alone came up with the plan to defeat the Nevermore. And as shown in “Painting the Town…”, she’s come up with several attack patterns involving each permutation of two team RWBY members (except for Yang and herself).
Jaune is a tactician specialized in creating new team attacks according to his analysis on the battlefield
(
(he reacts well to tactical imperatives )
getting your team out of open ground when facing a sniper, getting Nora to get her elemental power up, and coordinating the rest of the team to cover her). He has very good micro-reaction, but bad macro-awareness
You need a tactician to win a battle, and a strategist to win a war. If you can’t do both, then figure out which one you can do, and find someone else to do the other. (also Chess is a tactics game