Coaching career

After retiring from playing baseball, Bosio began a career in coaching In 1998. He was a special assignment pitching coach in the Seattle Mariners organization in from 1998 to 2002. In 2001 he was the pitching coach for the Tacoma Rainiers. In that season Tacoma won the Triple-A title and led the pitching staff to the lowest earned run average in the Pacific Coast League, working with future-Major Leaguers Brian Fuentes, Brett Tomko, and Joel Piñeiro. He also had most valuable pitcher in Denny Stark who went 16-2 with a 2.43 era. In that season he also served as the advanced scout for the Seattle Mariners in their 116 win season.

In 2003, he was the Tampa Bay Devil Rays pitching coach for Lou Piniella. Leaving baseball after the 2003 season for family health reasons, he moved his family to Appleton, Wisconsin. In 2006 he was the assistant pitching coach at the University of Wisconsin-Oshkosh, and in 2007 the pitching coach and then interim manager at Lawrence University. Bosio joined the Cincinnati Reds organization in 2008, serving as pitching coach at their Double-A Chattanooga Lookouts. He was named to the same position for 2009 with the Carolina Mudcats, the Reds' new Double-A affiliate, but instead signed on with the Milwaukee Brewers farm system. In 2009, he served as the Triple-A Nashville Sounds pitching coach. He helped lead the Sounds Pitching staff to the lowest earned run average in the Pacific Coast League upon his promotion to the Milwaukee Brewers. On August 12, 2009, he replaced Bill Castro as pitching coach for the Milwaukee Brewers. In October 2009 he was named Major League Advanced scout for the Milwaukee Brewers.

He is currently the pitching coach of Chicago Cubs. Bosio joined the Cubs coaching staff before the 2012 season, as part of team President Theo Epstein's re-vamping of the organization. He returned for a second season with the Cubs in 2013 and continued into the 2015 season.

[ Source: Wikipedia ]