During the midst of the divisional round of the NFL Playoffs on Sunday, the New York Giants made an important hire to their coaching staff.

Joe Judge picked his defensive coordinator in Patrick Graham, who had been serving as the defensive coordinator for the Miami Dolphins.

Graham replaces James Bettcher, who served as the top defensive assistant for two seasons under previous head coach Pat Shurmur.

Graham is inheriting a defensive unit that ranked near the bottom of the league and has his work cut out for him.

Here are five things to know about the new Giants’ defensive coordinator.

Worked with Joe Judge previously

Part of why Judge is picking Graham as the defensive coordinator for the Giants is due to their time together with the New England Patriots.

Graham initially got to the Patriots back in 2009 as a coaching assistant before taking over as the linebackers coach in 2011.

Judge came to the Patriots in 2012 as a special teams assistant after spending several seasons with Alabama as a part of Nick Saban’s staff.

Judge and Graham worked together until the end of the 2015 season before Graham moved onto his next assignment, which ironically enough, was with the Giants.