In 2011, I recognized Elizabeth Olsen as the best actress of the year. She was snubbed in the Oscars over role in such overrated films such as the Help. (Compare that film to other films that deal with the split in the South such as Precious, The Butler or Twelve Years A Slave.)
Martha Marcy May Marlene recognized what made American cinema great: teenagers with conflicts. You see that in Elizabeth Olsen's other empathetic roles such as Silent House or Liberal Arts. You see that in X-2 and X-Men: First Class, when Pyro and others join a more rebellious side at rebellious times in our society.
Cannot everybody see that Elizabeth Olsen, the Queen of Sundance (2011) is the best fit for the role of Scarlet Witch in Avengers 2?