Well obviously Stern's leaving will cause a major rift. That goes without saying...they lost the captain of their proverbial ship.
Much was the case during Joel Hollander's time as president of CBS Radio, instead of playing it cool, they decided to go on a station-flipping, shuffling rampage. KRock NY became Free FM. BCN changed it's entire lineup. Etc...
IMHO, if CBS left KRock NY alone, and the same with WBCN, they probably would have been better off than they are now.
Stern leaving was a bombshell, but they didn't even TRY to continue on as normal with the rest of their staff without Stern. That's what bothers me about the situation. If they tried to move on without doing anything but fill the morning gap with a new talent, and the station sunk to where it has (i.e. next to AAF, which they'd never really been before), then sure...make the moves. But they decided to basically flip the station...changing everything from afternoons, to nights, to imaging, to the logo...why? Why make all those changes to a station that was successful? When Kiss loses Matty, will they dump their entire lineup? It's the exact same thing.
No bone to pick with BCN. Loved listening to it when I was younger and living in Boston...just doesn't sound the same to me.