http://www.MMAWeekly.com -- Tweet @mmaweeklycomJake Shields is a former Strikeforce champion at 185 pounds. He defeated current light heavyweight contender Dan Henderson, an MMA pioneer, for the honor.He made the move to welterweight when he made the jump to the UFC, but now he's back at middleweight to face Ed Herman at UFC 150. While many pundits and fans are automatically throwing his name into the hat to challenge current UFC middleweight champ Anderson Silva, Jake Shields knows that,