First among "equals"?

I have two blogs from The Atlantic's small flotilla, Ross Douthat & M. Yglesias, in my RSS reader. Now, one thing I notice is that there is a faux-tab at the top that allows you to toggle between these two blogs, as well as James Fallow's & Andrew Sullivan's Daily Dish. But here's the thing: Sullivan's site doesn't have a tab to toggle back to the other sites within The Atlantic's blog confederacy! I suppose it is fair since he has the highest profile and brings the most readers, but I suspect that Jakob Nielsen might have a word to say about this sort of design architecture in regards to site usability. I mean, if you're going to have one blog that's simply laid out in a different manner, make it distinctive enough so you don't get disoriented looking for the tab to toggle back!1 - Note to the designer, ...