They haven't gone public with it yet, but it's an open secret the Philadelphia Eagles will switch to a 3-4 defense under new head coach Chip Kelly. Their early free agency signings show how that 3-4 defense is taking shape.
Compared with recent seasons, the Eagles have been low-key in free agency. That's certainly a wise policy after being burned by the big spending that produced the so-called "dream team." However, staying below the radar, doesn't means the Eagles haven't been active and Smart.
So far they have added four new pieces to their secondary. Safeties Patrick Chung and Kenny Phillips will compete to start right away. As will new cornerbacks Bradley Fletcher and Cary Williams. However, it is up front where the Eagles have made their best moves and have been most revealing about their choice of defensive scheme.
One of Philly's first deals was to secure former San Francisco 49ers defensive lineman Isaac Sopoaga. His arrival was the first major hint at a move to a 3-4 front. Sopoaga is a hulking nose tackle, the kind of run-stuffing force every 3-4 needs in the middle.