The influence of Australian researchers to major advances in health is remarkable. Several of them have won a Nobel Prize for their contributions to the world.
There is no point on choosing the option that will be less expensive when it fails, but the one that has the highest probability to succeed given your requirements and constraints of time and budget
How can you ensure that when you outsource a project you obtain the same or better result than if you ran it yourself? if some basic principles are followed and respected, the results can be excellent