Agreed. Good for depth. He will give Seth competition but, I am pulling for Seth to win out as starter. From all appearances Anderson's weakness is pass protection. Yeah, first instinct involves some skepticism since he has been cut by a team who have some significant OL issues. But, there could be issues such as the fact he is not a good fit with the Bill's scheme (you would think the Bills would want to work around that if Anderson is a bright point on a rather bleak picture for the OL but it is the Bills we are talking about!) and hopefully no locker room stuff.
Big Daddy is another move for depth I can buy into. At his age he can't contribute like in his prime but a utility function to spell Traylor would be good for both considering their wear and tear up to this point.