 Though the Brewers hoped that Barker would be their long-term first baseman, he was soon surpassed by Richie Sexson.He played in a total of 78 games with the Brewers in 1999 and 2000 and hit .253.After spending the 2001 season in the minors, the Brewers traded him to the San Diego Padres on March 24, 2002, in exchange for Dusty Wathan.