Are Christians Broken People?

A common Christian expression that you hear a lot is that Christians are just broken people. Many Christians also confess that God's not finished with them yet implying that God still has a lot of work to do. Are any of these expressions Biblical? When a person becomes a Christian, is it God that has more to do for them or has he done everything that was necessary? Be sure to drop by bibleharbor.com if you would like to hear answers to other common questions.