Pretty sure Free FM in NY was near-if not dead last in the ratings during most timeslots. 
  
As for FAN, they've been rotating morning hosts since Imus got shitcanned. Most of the time it's been Mike and the Mad Dog pulling double duty (Their regular show is 1-6:30), but usually Mike by himself and not the pair. They've also had Geraldo and Jim Cramer as well. I never listened to Imus at all, and I'm not up early enough to hear how its going, although if I was, I'd be listening to O&A rather than the 'FAN rotating jocks or the dreadful Mike and Mike alternative on ESPN radio.