The one bit of good news in the shit storm that is the 2020 OL is that I think Biadasz looks like a long-term keeper. His all-22 against Cleveland was impressive, he wasn't perfect but he clearly already has more of an anchor than Williams and I like his awareness at the center spot, his head is always on a swivel looking for work and seeing if guys are leaking towards him on a stunt.
It was only one game but he really looked solid, there are some areas where he has to improve (pad level, hand use/placement, general balance) but I think there's quite a bit to work with there and I'd honestly be surprised if he went back to the bench even when Looney is healthy.
If we don't add anybody of note on the OL it probably makes most sense to go with the Knight-Williams-Biadasz-Looney-Martin combination that we had in the Seattle game.