That is interesting. I have a feeling Daniel will be a cap cut, and would be a solid #2 for the right price.
I just don't really see that much out there in terms of quality vet options. The Bills don't need to bring in a big name, they just need someone who can contribute in the film room and if T2 is out for a few games, someone who can provide a few quality starts. Foles would have been great, but again, we don't know what he was looking for. Daniel's would be a solid option but he could be looking for too much as well (assuming he's cut).