The minor league coaching carousel has come to a halt as the Oakland Athletics organization has all of its coaches in place for the 2013 season. The big news is the promotion of Steve Scarsone from manager of the Double-A Midland Rockhounds to manager of the Triple-A Sacramento River Cats.Scarsone replaces Darren Bush, who was promoted to Oakland to be the A's bullpen coach. For Scarsone, the promotion is a big career step as all four of the previous River Cats managers have gone on to coach or manage in the major leagues. On the surface these may not look like big moves, but the A's lean heavily on their minor league system to produce players that are ready to contribute when called upon. The coaches in the minor leagues play a crucial role for the A's big league team. Last year guys like Brandon Moss, Chris Carter, Josh Donaldson, A.J. Griffin, Dan Straily, and Evan Scribner all played important roles for the A's. Straily and Griffin both spent time under Scarsone's leadership last season."He comes every day with the same energy win or lose," Straily said of Scarsone. "He tries to instill that attitude that we are better than everyone else in each ballplayer. He's a lot like every other member that the A's have put into the coaching staff. He's positive, upbeat, and he's not a negative person." Scarsone has managed several teams in the A's organization. He led Single-A Kane County in 2009, Single-A Advanced Stockton in 2010, and Double-A Midland for the past two seasons. He also managed for two years in the Diamondbacks Minor League system. He not only has shown good leadership qualities as a manager but also is a proven teacher and instructor," A's director of player development Keith Lieppman said. "We believe he will carry on in the fine tradition of the outstanding young managers that have led the River Cats throughout their history."Former A's bullpen coach Rick Rodriguez has been named the River Cats pitching coach. He spent two years as the bullpen coach in Oakland before being replaced by Bush. Rodriguez is the longest tenured pitching coach in River Cats history. He spent 10 seasons in Sacramento. He replaces Scott Emerson, who will now be the organization's roving pitching instructor. Emerson spent two seasons as the River Cats pitching coach. Emerson coached Jarrod Parker, Straily, and Griffin last season and they all had an impact on the A's starting rotation. He is an outspoken guy with a wealth of knowledge and should fit very well in his new role. "I think it's a great opportunity for him," Straily said. "He's a well liked guy, knows what he's talking about, knows how to evaluate talent and develop it, and that's what that position is for." The job he is taking over used to belong to Gil Patterson who left for the Yankees organization. Greg Sparks returns to the River Cats for his second season as hitting coach. Aaron Nieckula will be the manager of the Midland Rockhounds after seven seasons as manager with the A's Single-A affiliates.