"Getting out of the building" is not a task you want to outsource. Speaking to initial potential customers is critical to the start up and must involve the founders. Once you establish product/market fit outsiders can come into play.
Customer Development is the process of how you get out of the building and search for the model. Customer Development is designed so that you the founder(s) gather first hand experience about customer and market needs.
It can’t be delegated.
Let me say it again: Getting customer feedback can not be delegated.