Matt, there are various ways to get it...a big subject. We would have to define our terms as to what "lag" means to properly address the subject. But, from what you are probably referring to, Hogan used a change of direction and speed. It's a little more complicated than that, though.
Tongzilla, I got to the Mac link. Quite different from what he was calling MORAD for the most part of his career. He still has less lag, padn'er. Look at his club in the first frames of the downswing.
My criticsms are primarliy that I don't believe the MORAD model is a good choice for the average dedicated golfer. Surprise, I'm really thinking about this "person".
I don't have the experience some here, eg. Brian, has in working with golfers of different skill levels. That being the case, I tend to be impatient with overly complex swings. Probably, experienced instructors will agree...