I have been involved in some ways with this as part of a large company and smaller ones since 1998, overhead and management of the process is a lot of time and

I have been involved in some ways with this as part of a large company and smaller ones since 1998, overhead and management of the process is a lot of time and money. Unless you are already setup to handle a lot of paperwork etc it is just more work than a startup can dedicate time to. I don't remember the number of man hours to do it, but it is significant, and as some others have already pointed out, the delay to get the person moving is generally pretty significant. My 2 cents, until you are pretty well established it is a distraction from what a startup should be focused on, customers and revenue.