In all my years in radio, here’s something I’ve never heard a radio sales rep say to a client: “If you run too many spots, it will hurt the effectiveness of your campaign.” But that’s essentially what Facebook is now telling its advertisers. Here’s some context: Radio sales managers have raised their sales games against other radio stations in town to an art form. Every DOS knows all the tricks – when to cut rates, toss in free mentions, add a remote, or throw in other stations from the cluster to sweeten the deal. Of course, these days, the problem