Dez Bryant
Dez Bryant was known as one of the best wide receivers in the NFL at his peak. He was also known for causing a lot of rifts between himself and the Cowboys. Due to all of the drama, he was released from their contract after 8 seasons.
A Difficult Ego
Naturally, no one wanted to work with someone as difficult as Dez Bryant, so it was hard for him to find another team. He also suffered from a difficult injury which affected his playing. He is now a loud voice on Twitter in the football world, even though no one asked.