Sakura - both from Naruto as well as TRC Kaoru - Rurouni Kenshin Rukia - Bleach Yoruichi - Bleach Shizune - Naruto Temari - Naruto Yuko - xxxHolic Washu - Tenchi Muyo Ryoko - Tenchi Muyo
No doubt after I watch a few more some more will show up
I'd have to back an look, but supposedly Sasuke pulled that lung shot so that instead of being fatal it was simply severe, suggest that at the time he didn't have it him to actually finish him off.
I believe that if you check it again, Sasuke was suprised that Naruto was able to block the Chidori strike enough to make it miss his (Naruto's) heart, which was Sasuke's target.
And what do dreams and aspirations have to do with roles? Not a heck of a lot. And these roles can't change? Why can't they?
Of course roles change, depending upon the personalities, if someone is content on being a follower, only under the direst circumstances will that person take charge. If someone always thinks of himself as the boss, then he will act like it until proven otherwise. In a well run team the roles switch as the situation requires. The softspoken one will be the boss when diplomacy is needed, the fighter will take charge when the enemy springs the ambush, etc.