Background: Shelton James Benjamin (born July 9, 1975) is an American professional wrestler currently signed to WWE on the SmackDown brand. He is known for his work in New Japan Pro Wrestling (NJPW) and Pro Wrestling Noah through their working relationship under the ring name Shelton X Benjamin and for American promotion Ring of Honor (ROH) under his real name. Prior to becoming a professional wrestler, he was a two-sport athlete in college. Benjamin won an NJCAA championship in both track and field and collegiate wrestling.
Context: Benjamin made his independent circuit return on July 24, 2010, in San Diego, California against Scorpio Sky. On July 31, 2010, during the World Wrestling Council's "La Revolucion" show in Puerto Rico, Benjamin defeated Ray Gonzalez to win the WWC Universal Heavyweight Championship. At Crossfire on November 27, Benjamin lost the Universal Heavyweight Championship to Carlito.  In November 2010, Benjamin competed for American Wrestling Rampage. He made his debut on November 10 with Haas facing La Resistance. During his tour with AWR he defeated Shawn Daivari in a steel cage match. He also had tag team matches with Haas taking on Booker T and Scott Steiner. On March 8, 2011, Benjamin wrestled in a dark match prior to the SmackDown tapings in Houston, Texas, defeating Curt Hawkins. On March 9, 2011, Benjamin won the MWF Heavyweight Championship and lost it on June 4.  At JAPW 18th Anniversary Show, Haas, Benjamin and Angle reunited for the first time in 11 years. In the main event, Benjamin and Haas defeated Chris Sabin and Teddy Hart.  On May 15, 2015, Global Force Wrestling (GFW) announced Benjamin as part of their roster. He made his debut for the promotion on June 20, defeating Chris Mordetzky in a main event singles match. Benjamin participated in Global Force Wrestling's inaugural tournament to crown their very first GFW Global Champion, which served as the company's world heavyweight championship. After gaining a victory in the quarter-finals, he forfeited his next match-up to Bobby Roode due to a storyline concussion.
Question: Why did Benjamin go to the independent circuit?. Whats the answer?