Here's an inspiring example of marketing agility. This post by MailChimp's CEO talks about how they moved fast, coordinated across multiple people (even outside of marketing proper), worked in thoughtful iterations, and ended up with great results.
What we (+Kelly Norton
and others) loved about this is how they did better marketing because
they were trying to be more sincere and considerate of their audience. A takeaway, in my view, is that any approach to "agile marketing" ought to ensure that your draft marketing deliverables get in front of the right people internally (without too much process friction) before they go out the door. Those few extra tweaks can make a huge difference, as Ben's story makes so clear.
(via Kelly Norton)