[@Aquanthe]It's not the professions/classes, it's the narrative role--[@Leos Klien] is asking about a Captain of the Guard, who travels with the party to protect the Prince, and as Captain would effectively be second-in-command (and given Eli's current lack of leadership ability, the de facto leader) of the group save for those Royal Knights like Rhea that are kind of between a Captain and direct bodyguard to the Prince. But Maize already does that.

Edit: Imagine if LotR had two Gandalfs, not just in terms of two wizards, but two people fulfilling the same niche in the story. Or two Gimlis/Legolas etc.