I've never seen that blog before, but it looks like it's been up for a long time. I wonder who runs it? I'm not sure it's a MS employee, but it's possible.
Have a read of this blog: "http://minimsft.blogspot.com/2006/03/vista-2007-fire-leadership-now.html"
Can't tell how many are MS employees but...I would say a few people are hurting in Redmond at present.