“Paul, The Person; The Evangelist; The Pastor”

Make the assumption that I have no knowledge of the Apostle Paul of the New Testament.  Therefore your challenge is to educate me regarding this man.  Who is he and all three categories?  What did he do to become the evangelist to gentiles and Jews, and how did that characterize his life?  And third, it is typically know in pastoral circles that evangelists typically do not make good pastors,  and pastors typically don’t serve the calling of evangelist well.  How did Paul accomplish this,  or did he?