Quote Originally Posted by Mizuchi
Why are konoha genin always sent out to try and kill jounin-level ninja???
Too true. It was even a little unplausible way back when they took on the Sound 5 and won. They each had to take it to their limit, but in the end they defeated enemies with superior abilities, including the ability to "power up". During filler time, it's routine.

Maybe the difference between Jounin and Genin isn't so much power level and ability, but more the knack for leadership and increased mastery of skills and techniques. Even with superior skills though, having heart and inventiveness can win out, so the Genins stand a chance against Jounin. Or maybe it's just poor writing. Or maybe Konoha lives by higher standards, so it's tougher to gain Jounin level than at other villages.