The Hangman story arc was absolutely perfect the way it ended up, with him being shown true friendship by the Dark Order, and him opening himself up to accept them, leading to him standing with his friends and believing in them and himself.
Unfortunately, ironically and sadly, I think a lot of what made this storyline work so perfectly and allowed that relationship to happen was Brodie's death in the middle of it. Do you know what the plan was had Brodie not died? Would Hangman be totally solo and the part about him finding real friends would be missing? Would he still be kind of associating with Dark Order? Would they have gone in a different direction totally?
I think it could still work with Brodie Lee. Brodie would have turned himself babyface eventually anyway.