So much misguided Sakura hate in this thread.Not to mention stupidity?How has Sakura been useless when we all have seen some of her skills versus Sasori? Not to mention, her saving Kankuro's life with her medical ninjutsu...Sakura doesn't get much face time in the manga so it's not like we know all the training she has been doing over the years.Furthermore, she was the most skilled member of her team when it came to chakra control, intelligence, and analytical ability since part one.Sakura biggest weakness was her lack of chakra and confidence.I think Kishi was letting us know that now that Sakura has enough chakra, she can finally show off what she has learned over the years.Maybe she had mastered numerous jutsus but because of her chakra level, those jutsu would have been weak;sort of like the earth walls ino-shika-cho created.