#2. Serena Deeb - A surprisingly short WWE stint
If you count her days with Florida Championship Wrestling, then Serena Deeb's run with WWE lasted a little over a year. However, when taking into account her main roster run, then her stint with the company was far shorter than most people realize.
It's interesting because Deeb has been widely regarded as one of the finer veterans of women's wrestling, one who influenced a lot of women. She was recruited by CM Punk to join the Straight Edge Society and had her hair shaved on live TV.
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She appeared alongside Punk and Luke Gallows for a while, and in the summer of 2010, she was released. The reason for it was reportedly that Deeb didn't follow the straight edge lifestyle in real life, and thus did not integrate her on-screen persona to her private life.
It seems ridiculous in hindsight, but that's simply how strict the company was about such things. She returned to WWE for an appearance in the Mae Young Classic, and in early 2018, she was signed as a coach at the Performance Center, staying there for two years before she was released in the pandemic.
Serena Deeb's run as a trainer lasted longer than her run as a superstar.