I agree with most of you. I think that Sakura's parents are normal people and she might be the first ninja in the family. Since we still don't know was Tsunade's abilities are we can't say taht Sakura is not living up to her counter part form the other team.

Sakura knows a lot about how jutsus work but she does not add any of here self to her jutsus so they are just normal executions of them. I think that something will happen in the future that will change this. At that point she will be very strong, but for right now she sucks.