Re: They would have if the CBS-FM route was followed
To add to what you say, WCBS-FM was evolving many years before any other oldies stations were. I have a tape of Bob Shannon circa 1994 talking up a "new oldie" (10 or so years old), "Strong Man" by Rick Astley and one from the same day
of Max Kinkle doing a kick-ass (wow was he on that night, wish I rolled more tape that day) talk up of "Living in America" by James Brown.
Also, until the early 90's, CBS-FM did a "yesterday and today" countdown where, as I recall, on Tuesday nights from 7-11 they would play that weeks Top 20 (I think they used the Hot AC not the CHR charts from radio and records) and
sprinkle in oldies, for example, they would play the BoyzIIMen version of "In the Still Of the Night" and then the original version of it, or they would play a rap song by Sugarhill Gang on a specialty show like "Thursday Night 70's" and then a Sylvia Robinson song (she put the Sugarhill Gang together). They put it all together as one wonderfull pop music continuom, new and old, emphasis on the oldies of course, but at the same time making sure the station didnt just sound like a time machine.
Digression interesting article about that here - long -
http://www.vanityfair.com/commentary/content/articles/051031roco01
So CBS-FM was doing it. But what did all the "radio experts" back then say???? That it was a terrible mistake! That Joe McCoy was a fool for doing this, etc, etc, etc.
And now look at where we are.