It's hard to believe it's only been one week since free agency officially started in the National Football League. Since then, and even before it, the Buffalo Bills have made several moves with players being released, others being signed, and even a trade.
Here are all the players the Bills have added versus lost this offseason, including those released. I based "lost" on who was on the active roster and practice squad at the end of last season. Still unsigned free agents are not included:
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