He markets the guide as one for casuals, but it's got great tips for everybody: fight on the flags, not on the road. Make sure you've got something held before moving on. Send a druid after the flag and control WSG's midfield. Stick together and assist and heal. This is all stuff every single person who queues up for a BG should know (and unfortunately, it's also the same stuff that's yelled in every /bg channel because lots of players don't listen).
Great post, and a must read for anyone routinely going into the battlegrounds. If you aren't doing this stuff already, take the lesson, and do it from now on.