Ain't no one ever replacing Rush.
That ship has sailed to Valinor never to return.
It's just filling a time slot.
Take the lessons learned by the greatone and push forward.
There will never be another Rush, goes without saying. But, this is the syndicators of Rush's show bringing in new full time hosts; not another network just plugging someone into the time slot like has been done with Bongino. So I'd say that they are doing just that, pushing forward.
Frankly, since Rush died, I think his show sucks.
That's probably why Premiere Networks is making this move. I've heard Clay Travis on his sports talk show, Outkick the Coverage, and he is very, very good, especially when commenting on the societal/political angles relating to sports. I expect that's how he got on Premiere's radar.