I don't follow Seattle much. So, I can't vouch for all of that, but widely discussed was that David Field didn't like the way the CBS stations were run. He reportedly felt like they were inefficient, had too high of overhead, spent too much, and, by extension, had too low of margins. Using that logic, killing the more successful station can make sense if you're able to use the reduction in competition to increase revenue at your other property without significantly increasing expenses. It often doesn't work that way in practice, of course, but Entercom certainly wasn't the first (and won't be the last) to try it.