Originally Posted by DrCosmic
It worked fine as a cameo, but it didn't serve the character very well. He was barely introduced, and so it positioned him to be barely on the team, a sort of narrative scapegoat. I'd want more than than from a favorite Avenger.
See, I think that angle worked well and was a nice nod to Clints comic origin. He started out as a semi-villain before joining the avengers in the comics and he did so in the movies. It also was a nod to Avengers #1 with the mind controlled hero who would become one of the founding members. The just substituted Hulk with Barton.