"Bob Martin" wrote:
I'm interested in seeing what you guys would come up with if you were
writing the requirements for the OSP. Any takers?

I would not work it as a contract but as a prize / purchase.
Set a date along with performance and cost requirments and
announce that NASA will most definitely buy a certain
quantity of services or vehicles that meet the requirments
on that date from whichever company (or whichever two
companies perhaps) provides the cheapest and best.

Though it might be easier and better to work it as a prize.