It's true that Ngata isn't a slouch. At this stage of his career, he's also not one of the top two or three defensive players in the NFL, like Suh, who signed with the Miami Dolphins in March.
Losing a player of Suh's caliber is never good, no matter how it's spun within an organization. It also rarely happens, which is what makes this situation so interesting -- and why players are tired of answering questions about it.
What once was a strength cratered into a question mark. It wasn't just losing Suh. Nick Fairley -- who played well before getting injured -- and C.J. Mosley are also gone. In their stead are Ngata -- learning a new scheme -- Tyrunn Walker and Caraun Reid, both of whom are unproven, among other unknown quantities.
On the plus side, defensive coordinator Teryl Austin is back. The Lions' defense turned around quickly in Austin's first year. It will be intriguing to see how much more creative he gets, especially with a bevy of linebackers and questions up front.