How Can Jesus Say Believers Will Do Greater Things Than He?

In John 14 Jesus speaks to the Disciples and says, "Believe me that I am in the Father and the Father is in me; but if you do not, then believe me because of the works themselves. Very truly, I tell you, the one who believes in me will also do the works that I do and, in fact, will do greater works than these, because I am going to the Father. I will do whatever you ask in my name, so that the Father may be glorified in the Son."

How is it possible that we will do greater works than Jesus? I have not fed 5000 people. I have not healed the sick. I have not cured the blind. I believe in Jesus as the fullest expression of God known to us, however the only thing greater than Jesus I have ever accomplished is the amount of anger I have expressed. 

When we read the Gospels it is helpful to remember that we tend to default to interpreting it as an individual. So while as an individual I have not done much greater than Jesus, I can tell you that the single body of the Church has done very great things. I was told some years ago (and I have not yet been able to recover this to still be the case) that the United Methodist Church feeds 1 million children each day. Jesus fed 5000 in one day, the UMC (a single body full of believers) feeds many more than that everyday. 

Could it be that the message of Jesus is not limited to me and Jesus but extended to we and Jesus. We do things greater than Jesus... Me? Not so much.