Originally Posted by Abdula
Well we haven't really seen anything that could merit you saying no Jiraiya sucks as he just died and no one even knows it yet. Even so its not as if we used to see him much anyway so it really won't change much. Now no Kakashi could be a big change I don't think it would make Naruto a crappy show as that is Naruto's job but it could take the show in a whole new direction.
Kakashi's death could change the entire mood of the series and not having the
ingenuity, skill and experience of Kakashi to fall back on would completely change how Naruto and Sakura operates. Kakashi has been their safety net, the Zabuza arc, the chuunin exams, the Gaara arc, Hidan and Kakuzu even now. Kakashi is their leader and he is the one that makes the decisions and guides and protects them. Beyond that he is the only one on that team that Akatsuki view as a threat and with out him Naruto, Sakura and Sai even with Yamato wouldn't be able to do much. Kishi did describe it as dark blue and at this point there is nothing that would have a more powerful or direct impact on Naruto and Sakura as Kakashi's death.