In an interview at WonderCon, IGN asked Chris Evans about the process that eventually landed him the role of Captain America.
Evans answered "I didn't actually read for it, but I knew a lot of the guys at Marvel. We had an existing relationship. It's just luck man. It just kinda came my way."
He also mentioned that he's not sure how they plan to execute the transformation from the frail Steve Rogers to Captain America.
My thoughts: This doesn't exactly inspire confidence. After having all these people in the audition process, I hoped that they had seen something special in Evans' audition. Now it seems there really wasn't one. I'm still confident in his ability as an actor, but a little less confident that he's the perfect fit for Captain America.