That doesn't mean doing something that has never worked in the NFL is going to make it better. The only way the losing streak is going to end is for the team to get healthy and for Carr to start. And the only way to stop being a mediocre team is to get rid of DA.
Look, I thought Hill should have gotten more of a chance at QB when Brees retired. But, frankly, it was clear that he wasn't a good fit for the scheme that Payton ran and Payton and Carmichael seemed unwilling to change it to fit what Hill does best. I actually think he might have been a better fit for what Kubiak is doing with Rattler. But, when he did get a shot, both full time and part time, he got injured. And given his age coming out of college and how long he sat behind Brees, he was never going to have a large window to prove he could play QB.
Maybe he would have made it at QB back then, but at age 34 with all the injuries he continues to get, there is really no point in trying some weird QB rotation. It wouldn't give him a real shot to be a QB and he's very good in the FB/H-Back/HB role.