Carlos Tosca was the first manager in Portland Sea Dogs history. He held the post for three seasons, the longest tenure in team history. In his three years as skipper of the Sea Dogs he posted a 229-195 record, a .540 winning percentage, the second highest in franchise history. He led the Sea Dogs to consecutive playoff appearances in 1995 and 1996. He was selected as the manager of the 1995 National League Affiliate All-Stars for the Double-A All-Star Game. The Florida Marlins also honored Tosca with their Carl Barger Player Development Person-of-the-Year award. He was named the 1996 Eastern League Manager of the Year and was also tabbed by Baseball America as their overall Minor League Manager of the Year.

In 1998, Tosca got his first big league coaching job as the bench coach for the Arizona Diamondbacks, a post he held through the 2000 season. In 2001 he managed the Braves Triple-A team in Richmond before returning to the big leagues as Toronto’s third base coach in 2002. Midway through the 2002 season, Tosca took over the managerial duties for the Toronto Blue Jays. As a big league manager Tosca posted a 191-191 record before being replaced during the 2004 season.

Tosca returned to the Diamondbacks in 2005 as Arizona’s third base coach. Tosca has 17 years of experience as a Minor League manager in which he has had 12 winning seasons including six first place finishes.