PLANNING for future content takes a lot of work, pre-planning, even. Anyone who's ever done video knows how much prep work is involved, and at the end, how much footage is unused ON TOP of the time used editing it. That latter bit is probably Drew and Jason, but Jeff and Co. probably are busy planning weeks worth of content ahead of time. This is all probably alongside the usual game info acquisitions like news, articles, interviews, trailers, quick look legal permissions, and reviews.
For a crew of 5 (in SF), that's a lot of work. I can't imagine how the other 3 do it (GBeast).