I wonder if Esri has implemented the new field manager workflow for offline Collector editing yet? Back in 2014, they've mentioned that they will have an ability for filed manager to prepare the map, create the service in the map, define areas that are going to be taken offline that will then be deployed to individuals that are going to work in certain areas. So they don't need to define the area to take offline themselves. It will be already created for them. They just need to have access to it or download it to their device.
In addition, can downloaded data be stored in an external SD card at this point?