Re: Avengers 2: Age of Ultron
BP was not an original team member. He came along later. Iron Man, Thor, Wasp, Ant-Man/Giant-Man, Hulk and maybe Captain America(he's really the first recruit) can be seen as the original team. That's about it.
You know, it occurs to me that Captain America is basically the superhero equivalent of Mary Poppins. Practically perfect in every way and all that stuff.