Pro Football Focus will be providing analysis for every major NFL signing and trade during the 2015 free-agency period, accounting primarily for the quality of the player and his fit with his new team, and focusing less on the financial terms of the deal.
Here is a grade for the reported deal between Corey Peters and the Arizona Cardinals, which cannot become official until Tuesday at 4 p.m. ET.
Link to grade articles on every major deal
Arizona Cardinals: B
Peters gives Arizona a player who can replace Dan Williams as the nose tackle in the Cardinals' 3-4 defense. Peters also can stay on the field on third downs, rather than be consigned to the bench as Williams was when the Cardinals went to nickel or dime defensive packages.
Williams played just 427 snaps in 2014 in that role, while Peters has played more snaps than that in every season of his career, excluding one (2012). Peters' best play in Atlanta's defensive front came when he was lined up at the nose tackle position, and while the two teams' schemes aren't exactly the same, it does suggest that Peters can have success in Arizona.
Peters has also flashed the ability to make big plays -- plays typically reserved for players more athletic than nose tackles -- including a ridiculous one-handed interception on a screen pass that he blew up against Carolina back in 2011.
Peters may not be as strong against the run as Williams, but he brings more versatility and the chance to play on third downs, so he represents a solid move by the Cardinals.