Agent Kennard McGuire represents both men and has said that Jackson, who just completed his first season as head coach after serving as the offensive coordinator, isn't going to be let go, the site notes.
Jackson's squad started off the season promisingly, going 7-4, but then lost four of its last five games and missed the playoffs for the ninth straight year.
Since team owner/GM Al Davis died in October, Jackson "handled many personnel decisions," the site notes, including the trade for quarterback Carson Palmer in October.
The 48-year-old McKenzie, who once played for the Raiders, is immediately joining the Raiders, ESPN notes, and won't stick around with the Packers while they try to win a second straight Super Bowl.
UPDATE: Hue Jackson was fired Tuesday.
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