How to Outsource Graphic Design for Your Game

I will oftentimes outsource small parts of a design so for instance in my game Hunted Wode Ridge there were a ton of little event vignettes that need to be written. What would take me maybe a month in my schedule they could do in about a week because you know one it was all broken up so ten people that's ten stories each paying them by the word and things like that. I am not a puzzle maker though and so I've outsourced the puzzles part of that game design to some people who are very very good at creating puzzles that are fun and intuitive and can actually figure out versus the puzzles I would come up with which would either be so simple they