In 1996, Kremblas was a free agent. He did not get any offers, except from the
Montreal Expos as a
player-coach, and he served as the hitting coach for the
Ottawa Lynx. Two years later, in 1998, the Expos rewarded Kremblas, making him the manager of the
Gulf Coast Expos Rookie League team. He was promoted to the
Single-A Cape Fear Crocs and spent the 1999 managing that club. After the
California League All-Star break of 2000, he became manager of the
Mudville Nine in the
Milwaukee Brewers organization, and after the Brewers switched Single-A affiliates in 2001, he guided the
High Desert Mavericks to the second round of the California League playoffs. Kremblas managed the
Double-A Huntsville Stars from 2002 through 2004. During his time with the Stars he also served as a coach in the 2003 All-Star Futures Game, a coach for the 2003
Arizona Fall League Peoria Saguaros, and as a manager in the 2004
Southern League All-Star Game. In 2005, he was promoted again by the Brewers to manage the
Triple-A Nashville Sounds and guided the Sounds to the
Pacific Coast League Championship. In both the 2006 and 2007 seasons, he took the team to win the American North Division title before losing in the conference finals, and he was named the
PCL Manager of the Year for 2007. After a 59-81 season in 2008, however, Kremblas was released from his position as Nashville's manager. In December 2008, Kremblas signed on with the new management team of the
Pittsburgh Pirates to manage the Pirates' Triple-A affiliate, the
Indianapolis Indians. Kremblas spent the 2009 and 2010 seasons as the Indians' manager. In 2010, Kremblas was named to the coaching staff of the
International League in the
Triple-A All-Star Game, and that same year he was mentioned by some members of the national media as a possible replacement candidate for the Pirates' manager
John Russell. For the 2011 season, the Pirates gave Kremblas the role of Minor League Field Coordinator for the entire organization, and in 2012, Kremblas became a special assistant to Minor League operations in the Pirates' front office. In January 2013, he was named manager of the Pirates' High Class-A affiliate, the
Bradenton Marauders. ==Winter league managerial career==