Macha was the manager of the Pawtucket Red Sox (AAA) before he took the A's job. Macha left the Red Sox organization when the Sox chose Grady Little over him.
I'm surprised they hired Macha. I mean Syveum did get the Brew Crew into the playoffs. They were dead and buried before Syveum took over. It also helped that the Mets choked but the Brewers did win 5 out of 6 to make the playoffs.