There are very few good jocks left. Very few. It's become a secondary job for radio people who must perform a variety of other tasks during the course of the work day; promotions, production, music, programming, WEB work....It is a sad state of affairs. Gone are the great jocks of the 70's, 80's and 90's (pre-corporate radio). The future is grim-first is was consolidation, now a dire economy at a time in radio when the ship was already sinking due to new technology.
The logical step for radio companies is 'network' radio. One jock, a hundred stations (Ryan Seacrest). Voice tracking only works if the talent approaches it as an art-form (like great live jocks of years gone by). At this point, most voice-tracking is an after thought, an 'end of the day chore' for a radio employee who's already expended their creative energy.
Why listen to someone voicetracking, or doing a crappy live show, when you can find the music you want on the internet? LIVE 365, Pandora, etc....Kids are getting their music from utube...and my space..Not only is the day of the DJ ending.....radio is dead. Bye bye.