The Black & Gold made some difficult choices when it came to some key players this offseason. But they were calculated moves. The Columbus Crew hasn’t made many moves so far this offseason, but a few of the decisions made by the team’s front office have a number of fans asking some questions. As part of the team’s annual end-of-season roster choices, the Black & Gold allowed winger/fullback Pedro Santos, winger Derrick Etienne Jr. and midfielder Artur to depart the club. Under head coach Caleb Porter, Santos, Etienne and Artur were key figures for Columbus. Santos played 116 games for…