MILWAUKEE -- Minor League pitching coach John Curtis resigned after nine seasons in the Brewers' organization to tend to a private family matter, leading to a shuffling of assignments on Wednesday.The Brewers promoted Chris Hook from Class A Wisconsin to take Curtis' place at Double-A Huntsville and hired Dave Chavarria to be the pitching coach at Wisconsin. It's a return engagement for Hook, who joined the Brewers in 2008 as Huntsville's pitching coach before spending the next three seasons at Wisconsin. He pitched parts of two Major League seasons with the Giants and has been a pitching coach since 2000, making stops at Northern Kentucky University and the Florence Freedom of the independent Frontier League before joining Milwaukee. Chavarria spent the last 11 seasons as a coach in the Texas Rangers' chain, including last year at Class A Spokane. He pitched in the Minor Leagues for seven seasons with three different organizations -- Texas (1991-92, '94-'96), St. Louis (1997) and San Francisco (1999). His father, Ossie, played for the Kansas City Athletics in the mid-1960s.