Arnold, 36, had served as director of player personnel for the Tampa Bay Rays prior to joining the Brewers. During his time with the Rays (2007-15), Arnold assisted President of Baseball Operations Matt Silverman in player acquisitions, contract negotiation and internal farm system evaluation. His responsibilities also included foreign and domestic special assignments and coordinating advance scouting coverage for the postseason. In addition, Arnold oversaw the integration of science, biomechanics and human movement analysis within baseball operations at all levels.
During his nine-season tenure in Tampa Bay, the Rays posted the fourth-best winning percentage in the American League (773-686, .530) and qualified for the postseason four times (2008, 2010-11 and 2013), including the franchise's first World Series appearance in 2008.
Arnold has 15 seasons of professional baseball experience. Along with his time with the Rays, he has worked in the baseball operations departments of the Los Angeles Dodgers (2000), Texas Rangers (2002) and Cincinnati Reds (2003-06).
While with the Reds, Arnold served as assistant director of professional scouting with his duties including player analysis, financial planning and arbitration, as well as involvement in advance, amateur and professional scouting. He joined the Rays following the 2006 season as a professional scout and was promoted to director of professional scouting in November 2009. In that role, he supervised the organization's Major League and professional scouting departments. He was promoted to his most recent position with the Rays this past June.
"While leaving an incredible organization in Tampa Bay, I am excited and eternally grateful for the opportunity join the Brewers family," said Arnold. "I am delighted at the prospect of building upon a dynamic environment and facing the challenges ahead together with Mark (Attanasio), David (Stearns), Doug (Melvin), Craig (Counsell) and the baseball operations department. Through hard work, curiosity, and creativity, I intend to work tirelessly with our talented group to bring a championship to Milwaukee."
Originally from California, Arnold attended the University of California-Santa Barbara, where he earned a degree in economics. While there, he met his wife, Jodi. The couple has a daughter, Julianne, and a son, Tyler.