A full-blown trade negotiation is extremely labour-intensive. By way of an example, before going off to Singapore, I chaired an interdepartmental meeting just to let people know what we were doing and to take stock internally as to where things stood on the various individual items within the file. I think 30 people showed up from the various departments.
My own team is expressing concern on a daily basis that they're being run off their feet trying to keep all the balls up in the air. It is tough, and as we engage more of these at the same time, I think it won't be surprising if we go looking for some extra help.