Too often, perhaps.mBut there are exceptions. How many new bosses have entered WPVI, or WBEB, or for that matter KYW radio over the long haul? Very little massive change, just continued evolution. Perhaps the new hire was given a mandate to do an extreme makeover, but perhaps he was brought in to continue the navigation. kYW TV has actually benefitted from stopping the revolving door and finding a steady, drama-free presence (cough...Larry and Alicia.....). Teeaks, sure--bosses who stay should always be striving for improvement, regardless of the industry--but dumping your anchor duo just because? Meh, seems more likely to be negative than positive.