By the way, I'd like to take a stab at answering the earlier PPM question.
When programming for the PPM, you're programming, to a degree, by the week. Instantaneous changes can be gauged.
At the same time, hammering home your station name to boost unaided recall are far less important.
Highly targeted Arbitron "tricks"...telemarketing, direct mail pieces become less desirable to goose ratings, er, in a sense, anyway.
I'm here to say that in a PPM world, stations will be programmed for the "ear" and less for trying to boost unaided recall of the name of your station.
Why and how two programmers in Chicago are unable to get them 'there' is beyond me, but um, OKAY.
IMHO, those two Chicago properties are a shadow of their former selves, mostly due to being two rock stations splitting a narrow pie in an increasingly ethnic marketplace. And, hey mangement had to 'make it look like we're taking action' combined with a bunch of 'BS' like the onset of the PPM to excuse two PD's from their contracts.
One of those two stations will not be 'in format' a year from now, maybe less.