He could be working as a contractor or as a part timer. I don't mean to stir the pot, but I know of at least one ex-INE employee who appears to work for two people at the same time.
Never discount the power of the two Brian's!!
It seems like Brian Dennis is taking a more active role in INE these days which is totally awesome!!
Besides the less overhead in salaries that INE pays out, the more competitive they can be with pricing.
Michael
CCIE# 34420 (R&S)