It's essentially a salary dump for Ravens general manager Ozzie Newsome, who was unable to convince Ngata to trim a $16 million cap hit.
A five-time Pro Bowl selection, Ngata has experience as a 3-4 end, a 4-3 tackle and a pure nose tackle. That versatility will allow defensive coordinator Teryl Austin to consider switching to a 3-4 defense.
Detroit general manager Martin Mayhew did well to replace Suh with a player of similar caliber, albeit one who is three years older and inching toward the decline phase of his career.
The Lions have salvaged the opportunity for back-to-back playoff appearances for the first time in 20 years.