For almost 30 years, the Dallas Cowboys have watched both the NFC Championship game and the Super Bowl on the couch. Though there have been a few seasons where they believed it to be "our year", it hasn't happened yet.

The four teams on Championship Sunday all have a handful of similarities between them that the Cowboys could learn from.

Talent, coaching, front office management and scope.

As far as talent goes, it's undeniable that the Cowboys are one of the most talented teams in the NFL overall. Easily the NFC. However, the handling and acquisition of talent is inconsistent.

When the Cowboys obtain talent it's been through three main ways: draft/develop young and inexpensive talent, don't overspend in free agency and re-sign your own players (unless they're too expensive).

This philosophy, which has been imbedded in the Cowboys way of business for years has not only hurt the end results, but it comes across as severe mismanagement and a lack of scope (understanding what's around them).

For years, the Dallas Cowboys have been able to pitch to free agents and coaches being interviewed that they are "THE Dallas Cowboys". A world-wide brand that's attached to championships and long-lasting success. That might have worked from the 60's through the 00's but from 2010 and on, it's been like a Janet Jackson song.

What have you done for me lately?

Just look at Sunday's participants.

While the Kansas City Chiefs lost their best receiver in Tyreek Hill, they allocated a number of quality resources into replicating his effect. Signing both Juju Smith-Schuster and Marquez Valdez-Scantling, drafting Skyy Moore and trading for Kadarius Toney.

Rather than waiting until the season started before trying address an obvious problem at receiver that was caused by the Cowboys own front office.

Both the Philadelphia Eagles and San Francisco 49ers sought to get their offenses better through various ways. The Eagles traded for a top-10 receiver in AJ Brown, while the 49ers added a top-10 running back in Christian McCaffrey.

Both elevated the offenses from solid to elite. As opposed to trading away a highly productive receiver for less than market value (Amari Cooper) because they let it slip and trying to replace him with a player who had 0 receptions and less effect on the offense.

What about coaching? After a decade, the Cowboys realized their ceiling with Jason Garrett was the divisional round. A decade. The same can be said for the Cincinnati Bengals who finally parted ways with Marvin Lewis after 16 seasons.

Granted, Mike McCarthy has just finished his third season as head coach. However, having two defensive coordinators in three years (Mike Nolan fired after one season) and letting OC Kellen Moore go after yet another season of miscues such as play calling creativity and predictability when faced with adversity was timely.

The definition of 'insanity' is doing the same thing over again and expecting a different result. The definition of 'wise' is seeing other's make mistakes and never making them yourself.

If the Dallas Cowboys want to avoid continued insanity, they need to wise up. The rest of the league is living proof.

Mandatory Credit: Kirby Lee of USA TODAY Sports