In my opinion, Jules is the stupidest of the sisters. So in that sense, you're betting on the wrong candidate. A much smarter person than her will win this Gambit. I'd rather believe that Alessandra, Dominique or Veronica will win (together or separately) than this butcher in the form of a steel-eyed blonde.
Dominik has already made her a normal offer - she will get the throne, and Juliette will be allowed to torture/kill slaves (in a separately fenced enclosure), but so that nobody could see... Basically, they'll organise her a kind of leprosarium with privileges. It seems impossible to kill her (it would be ugly, after all her sister), but also to let her do what she does in front of decent public - also not an option.. But Jules chose not to. Well, she won't get another chance.
So the smarts in this game are primarily Veronica, Callista, Alessandra, Elena, Dominique or the same Cynthia DeKock. As for Kane and Olivia - they're smart enough to work in tandem with the best, and it's only a matter of time and experience...They have a great education, the right genes and tenacious minds, and all they need to do is get some practical knowledge of how to manage business processes and staff, which they've both already started to do.