Although not as much. iHeart sells as a national platform combining on air and online.
Here in Atlanta, iHeart has 2 stations among the top in billing, WUBL/94-9 The Bull, and WWPW/Power 96-1. The Bull is voice-tracked from 3PM-midnight, and Power 96-1 is voice-tracked from 8PM-midnight and has Ryan Seacrest's syndicated show on from noon-4PM.
The Beat will need 1 live and local jock for appearances. The other weekday shift is likely to be voice-tracked.