Reynard
aka Ian Eller
See, this is good stuff. This is real valuable basis for discussion and improvement in the game. A game that relies upon stories -- which 5E does, as evidenced by its adventure output -- should talk explicitly about Villains and how "villain stuff" interacts with the rules.Page 94-95: Villians
It tells me Villain themes and Methods.
It doesn't tell me whether
- whether the villainis solo, has a single sidekick, an army of henchmen, and/or a few lieutenants.
 
- whether the henchmen are loyal, paid, convinced through fear or just have allied goals
 - whether the henchmen are equal between each other or have escalating power
 - which quirks and traits lieutenants might have
 - possible villainous organization structures
 - possible villainous abilities
 
- by race
 - by class
 - by type
 - how to build encounter based on the villain's henchmen
 - what type of dungeons they might hold up in or use as bases
 - how a villain's style might alter a dungeon