Killian Hayes - Is He a Mid-Level Guy?

Ivy and Cunningham, I've obviously just wave vaulted over him in the Pistons long term hierarchy. What is Killian Hayes gonna be? There was like a month in December or something when he started making some shots... He's still shooting 37%, 31% on threes, 41% on twos. But that kind of faded. Now he's back starting again,. They're bringing Birx off the bench instead of starting him because it's full on tank time. That has borne out to me. Is he a core player? Ivy and Cunningham,  I'm guessing that that has something to do with it.