If you imagine writing 1,000 words a day, which most journalists do, that would be a very long book a year. I don't manage nearly that... but I have published slightly too much recently.
By far the largest portion of NAC enforcement revenue between now and 2008 comes from network-integrated enforcement devices, but the biggest change is in NAC enforcement appliances, whose share of the market nearly triples between 2005 and 2008.