Why does The Vergecast audio/video take so long to post?

Why does The Vergecast audio/video take so long to post after it's completed? How is it that basically a one-man shop like 5by5.tv, run by Dan Benjamin, able to post audio/video of a podcast so quickly compared with the Verge? Dan usually has a podcast up for download less than 2 hours after it's completed. Twit.tv is also this fast.

The Verge team literally take a full day after completion to post their podcasts. Does it really take a full day to edit and post, or is it some weird strategy?