In line with this , as people who sent people for data collection, we need to know who to send where, because different people are talented differently and their capacity of managing the data is also different.
For example there is data that you have to collect secretively, with a lot of psychology especially in interrogative or investigative cases may be concerning that person or some other person's life, etc.
Therefore there are people who are best in that, who are best writing, who are best in using humor ,etc. In conclusion we don't just need to sent anyone to collect data or to manage data, choose someone who can do it best because a slight mistake in the person sent may make the data wrong or half baked