The first disciples of Jesus

The first two disciples of Jesus were originally disciples of John the Baptist who heard him speak about the Lamb of God to come.  They left John the Baptist to speak with Jesus.  Then they stayed with him.  Andrew was one of these disciples.  He went and told Simon, his brother, who will be called Peter.  Thus, Jesus wanted to go to Galilee.  He found Philip from Bethsaida.  Then Philip found Nathanael, who asked can anything good come out of Nazareth?  Nathanael was not deceitful as he sat under a fig tree.  Then Nathanael proclaimed that Jesus was the Son of God.  Why did he believe Jesus?  Nathanael would see the Son of Man.  What do you think was the relationship between the disciples of John and the disciples of Jesus?