In foxtrot, waltz, etc, yes the body rotation known as CBM is slightly in advance of the moving leg, in effect, the body "leads" the leg and thus places the moving foot along the path the weight is taking, which is to say the moving foot lands at least partially overlapping the track of the standing one.

Or perhaps we should say the standing leg sends the body, and the body leads the moving leg?

Some who teach this CBM for the W,T,Q prefer to teach the Viennese Waltz differently , with the leg and body turning together. This seems to be supported in the way VW figures commence from an underturned alignment of not only the body, but underturned feet as well.

I like the tought about standing leg sends the body--> body leads the moving leg along the path way where the weight is taking, detail technique described by key words.
Last night , my coach told me to hold RF ahead the LF in CBMP while my body weight travels onto left heel on 1 ( natural turn, waltz ). There is a delayed RF swing and very strong CBM, head is extremely left side. I am not sure whether it is better than the old one.

Yichin. Dead right . Both feet on the same track. Shoulders still, stepping across the body. Try to do a Contra Check without CBMP and your in trouble.