An interesting point raised in this piece - Jay Friedman article.
It's true that digital is a more reponsive marketing channel than any other we had before, but the truth about annual marketing plans shouldn't be questioned because of the rise of digital. What's usually wrong with big, unwieldy and inflexible annual marketing plans that mainly serve to prioritise the needs of different products, sub-brands and different interests within organisations - somewhere in the middle of all this two things get lost - responsiveness, based on results, and the consumer.