Why? Well, Carter wasn't exactly having the most productive, healthy or loyal season with the Columbus Blue Jackets while Johnson was a fan favorite who was considered a "core" player in the Dean Lombardi system.
Can anyone question this trade now? The Kings are the highest-scoring team since the deadline and have recently gone on a five-game winning streak on the march to the playoffs.
Whether or not you truly believe Carter was the missing piece is up to you, but here are a few things to consider when asking that question.
Begin Slideshow
...
Article Source: Bleacher Report - Los Angeles Kings