Who's the best/worst free agent we've ever signed?

[Nconroe]

For worst I was thinking , and its not his fault, Tony Boselli, since he had a big contract and didn't play one down for us in three years at LT. And kept us from building the OL as we should have from the early going.

For best FA, Aaron Glen was pretty good for a few years at CB, I was disappointed when they let him go.

Sure there are plenty more good and bad to think of.