One of the most significant years in NFL history was 1960. It was the same year that Pete Rozelle was voted in as the new NFL commissioner http://www.steelersfootballauthentics.com/benny-snell-jr.-jersey-authentic , filling a role previously held by Bert Bell prior to his death in October of 1959. The move was very surprising at the time because Rozelle was only 33-years old and had very little experience. Even with the many objections against Pete becoming the commissioner, he was still voted in by the owners after a meeting in January of 1960 where it took a rumored 23 ballots before they finally reached a final decision.Starting in 1960, the NFL added a Playoff Bowl, or third place game for the two team's that finished second in each conference, to be played at the Orange Bowl in Miami, Florida. It was also the first year of the American Football League, AFL Zach Gentry Jersey , which competed with the NFL until the two companies merged in 1966 to form the league we currently know today.The Chicago Cardinals would also go through changes in 1960 and they moved to St. Louis. The NFL would also add two more teams in 1960 and 1961. The Minnesota Vikings were announced as the newest team to join the league and were scheduled to begin in 1961. Meanwhile, in Texas, the Dallas Cowboys became the NFL's 13th team.The inaugural season for the Dallas Cowboys, who were actually called the Dallas Rangers before changing it in March, was nothing special outside of the hiring of New York Giants assistant coach, Tom Landry, as their first ever head coach. He would struggle in his first season and the Cowboys finished the 1960 season with a 0-11-1 record. It was the only time the Cowboys would not win a single game in one season.Eventually L.J. Collier Jersey , the Cowboys would turn things around and in 1971, they played in Super Bowl V where they lost to the Baltimore Colts 16-13. That marked the start of a decade of dominance for the Cowboys as they would go on to play in five Super Bowls between 1971 and 1979. In their first five Super Bowl appearances, they went 2-3. After the 1978 season, however, it would be 15 years before they returned to the Super Bowl.The Cowboys dominated the 70's and 90's and ended up going to eight Super Bowls between those two decades with a 5-3 record. Let's take a look at those five wins and rank the 8 best and 7 worst Cowboys players to win a Super Bowl. As some NFL teams have learned over the years, it just takes that one blockbuster trade to completely change the franchise - for better or worse.Now, hindsight is 20/20 http://www.seahawksfootballauthentics.com/marquise-blair-jersey-authentic , but there are a handful of trades over the last 30 or so years that never looked smart. For example, why would the Atlanta Falcons use a high draft pick on Brett Favre in 1991, only to deal him to the Green Bay Packers when he only tossed four pass attempts for them?When Oakland Raiders $100 million head coach Jon Gruden decided to trade Khalil Mack to the Chicago Bears, just about every football fan and pundit outside of Illinois performed a face palm. Why would this guy return to coaching and simply trade away a once-in-a-lifetime player? This Mack trade has "regret" written all over it, and we're only three months into his tenure with the Bears.Of course, some of the most recent one-sided blockbuster trades are still young. That is, we don't know exactly what will happen down the road for these teams D.K. Metcalf Jersey , so it's a bit early to guess just how one-sided they'll look in 10, 20 and 30 years from now.But back in the '80s and '90s, there were a ton of lopsided trades that forever changed the history of football. Had the San Francisco 49ers not pulled off two major coups, they wouldn't have been a dynasty that produced five Super Bowls over a span of a decade and a half.Here is a look at 10 one-sided trades involving current NFL stars. And for history's sake, we included five uneven trades from the '90s and five from the '80s.