Re: Marvel's short film to present new characters
10-min shorts are awesome idea (and no they dont have to just be origins).
You could subtract a good portion of set-up in Avengers with a Hawkeye short.
The only thing that concerns me is whether or not good talent will be available or cost effective for 10-min shorts. I would imagine these would be used to test the waters for a few characters so Marvel would hypothetically need to cast on the spot. A Chris Hemsworth type would have no problem, but what about Ed Norton. Would he do it on the off-chance a feature film would be made?