It's a funny thing about trades.
When discussing the worst trades in NHL history, we could easily be discussing the best trades.
It all depends on the team's perspective.
However, when one team benefits so much from a trade and the other side fails to keep up, you have to question the thought process and perspective that led to the trade.
In some cases, good players became superstars in their new environment, while the players the opposing team received floundered or failed to make progress.
It may take a year or more for a bad trade to reveal itself. When these deals happen, one general manager will be taking pats on the back while his counterpart will be looking for a towel to wipe the egg off his face.