Entercom is not going to do anything with The Lake that would impact the ratings of their AM properties. Hot Talk, Sports Talk, and any other talk are out. Disney isn't going to do any better than the current programming, and won't bring in an audience that's more attractive to advertisers.
The main reason Entercom spent big dollars to acquire 107.7 was to protect Kiss, and/or the rest of their properties. If the stations breaks even, it's a winner for them. If it doesn't lose too much money, it's still a winner for them.
The other intent of The Lake was to shave a couple shares off 97-Rock as a response to Citadel's deal with the Canadian boys and their attack on Kiss. If they tweaked the programming to drop some of the more annoying aspects (chirping crickets, etc.), and freed up the jocks a little, they might be more successful. As it is, they have a niche, which about all you can expect with their signal.