The Arizona Cardinals have revamped their defensive line with the signing of veteran Calais Campbell on a one-year deal, bringing experience and leadership to a group facing heavy competition. Campbell's addition, along with Dalvin Tomlinson, ensures a crowded practice room as many aim for a spot on the final roster. The team has seen significant turnover with the departure of players like Roy Lopez to the Detroit Lions and Khyiris Tonga to the New England Patriots. Campbell is entering his 18th season, having been a starter for the Miami Dolphins last year with impressive snap counts. Meanwhile, head coach Jonathan Gannon emphasizes the importance of both Campbell and Tomlinson in fostering growth among younger players on the line.