Tom Clancy versus Op-Centre

I'm reading Tom Clancy's Op-Centre at the moment, written in 1995 by Jeff Rovin actually - so not a Tom Clancy novel at all. Although, the Op-Centre book's are branded as Tom Clancy, I understand that Jeff Rovin wasn't actually credited properly as the author when the book was first published. It's OK, I'm enjoying it - probably not as much as a Clancy written novel though; it lacks the fine detail and "believe-ability" one gets reading a genuine Clancy.