A Springfield man and woman have plead guilty to drug trafficking, prostitution conspiracies and possession of illegal firearms. According to the U.S. Attorney for the Western District of Missouri, Tammy Dickinson, Ryan D. Wright, 39, and  Courtnie Lea Goins, 25, both of Springfield, pleaded guilty Tuesday to charges contained in a November, 2014 Federal Indictment. Wright is eligible to receive mandatory sentencing between five and fifty five years without parole, while Goins could receive up to five years. A sentencing hearing will be scheduled at a later date.