article_snippet: Haloti Ngata left the Ravens for Detroit and Nick Foles heads to the Rams with Nick Sam Bradford heading the other way.
article_snippet: Ngata's move possibly signals the introduction of a 3-4 in the wake of Graham’s imminent departure to Miami.
article_snippet: Haloti Ngata, pictured in white, has left the Baltimore Ravens to join the Detroit Lions .
highlights_snippet: Haloti Ngata heads to the Detroit Lions, giving defensive co-ordinator Teryl Austin an experienced nose tackle upon which to build a new 3-4 scheme .
  