I like this idea and came at it from a different approach. I've hired odeskers before with mixes successes.

We were hiring some day laborers locally to help us load and unload a truck, went to a place, hired two guys for a daily rate, and at the end of the day that was it.

As a dev, I'd love to hire someone to consult with me for a day to walk through my app with me and help improve it.

I wonder if ramp up time takes too much, or if it needs to be limited to consulting only, rather than actual writing the code / designing psds work.