If we look in the dangerous goods inspectors, that role has gone down from different modes of travel, be it rail or civil aviation, into one mode that will do everything.
As I specified, someone coming into Transport Canada before as an inspector would bring lots of years of experience in the sector from private industry. When I talk about generalists, they're realistically more able to do the paperwork and to follow a system, as opposed to being a technical expert on an issue—and, yes, going across many different modes.