NFL analyst says Dan Quinn must deliver magic to fix Commanders' flaw

Washington Commanders head coach Dan Quinn | Eric Canha-Imagn ImagesNobody expected the Washington Commanders to reach the final four last season, but it happened. Fans and analysts could scarcely believe what was unfolding in front of their eyes as this perennial underachiever defied the odds to announce itself back in the big time.

Sustaining or perhaps even exceeding this exceptional start is the next challenge. Fans are confident that the necessary roster improvements have been made this offseason. But one NFL analyst believes the most glaring potential flaw could be their undoing unless some offseason gambles pay off.

It's no secret that the Commanders were desperately short of…