Packers head coach Mike McCarthy was San Francisco's offensive coordinator in 2005…Green Bay S Jermaine Whitehead signed with the 49ers as an undrafted free agent in 2015 and spent that season on the San Francisco practice squad...Packers offense – pass game coordinator Jim Hostler served as the 49ers' quarterbacks coach from 2005-06 and as the offensive coordinator in 2007...Green Bay quarterbacks coach Frank Cignetti worked in the same role for San Francisco in 2007...49ers run game specialist/outside linebackers coach Johnny Holland played linebacker for the Packers from 1987-93, and worked as a Green Bay assistant coach from 1995-99...San Francisco assistant offensive line coach Adam Stenavich spent time on the Green Bay practice squad in 2006 and is from Marshfield, Wis. ...Green Bay chief operating officer and general counsel Ed Policy's father, Carmen, worked in San Francisco's front office in the 1980s and 1990s…Packers QB Aaron Rodgers is from Chico, Calif., and played collegiately at Butte College in Oroville, Calif., and the University of California…Other Packers with connections to northern California include: WR Davante Adams (Palo Alto), T David Bakhtiari (San Mateo), offensive line coach James Campen (Sacramento), CB Kevin King (Oakland), LB Blake Martinez (Stanford) and RB Ty Montgomery (Stanford)...49ers defensive quality control coach Bobby Slowik is a native of Green Bay, Wis. ...Packers LB Clay Matthews' grandfather, Clay Sr., played for San Francisco for four seasons (1950, 1953-55)...Packers TE Jimmy Graham played in Seattle with 49ers CB Richard Sherman (2015-17), DL Cassius Marsh (2015-16) and OL Garry Gilliam (2015-16)...Green Bay T/G Byron Bell played in Dallas with San Francisco RB Alfred Morris in 2017...Packers TE Marcedes Lewis teamed with 49ers DL Sheldon Day in Jacksonville in 2016 and for part of 2017...49ers assistant head coach/tight ends coach Jon Embree was Lewis' position coach at UCLA from 2004-05...Green Bay TE Lance Kendricks was teammates with San Francisco OL Mike Person in St. Louis in 2014...Person also played with Packers LB Antonio Morrison in Indianapolis in 2017...Green Bay CB Tramon Williams played with 49ers CB K'Waun Williams (2015), RB Raheem Mostert (2015) and T Shon Coleman (2016) while with the Browns...Green Bay defensive coordinator Mike Pettine was the Browns' head coach from 2014-15. A number of Packers and 49ers coaches served on Pettine's coaching staff in Cleveland: Green Bay tight ends coach Brian Angelichio, defensive quality control coach Ryan Downard, 49ers head coach Kyle Shanahan, special teams coordinator Richard Hightower, defensive backs coach Jeff Hafley, wide receivers coach/passing game coordinator Mike LaFleur, offensive assistant T.C. McCartney and run game coordinator Mike McDaniel...Packers secondary coach Jason Simmons played for Houston (2002-07) while a number of 49ers coaches served on the Texans' staff: Shanahan, defensive coordinator Robert Saleh, Hightower, offensive line coach John Benton, Holland and McDaniel...San Francisco defensive line coach Jeff Zgonina was also teammates with Simmons in Houston in 2007...Benton worked as the offensive line coach in Miami while Green Bay offensive coordinator Joe Philbin coached the Dolphins...Mostert (2015) and San Francisco NT Earl Mitchell (2014-15) also played for the Dolphins during Philbin's tenure as head coach in Miami...Angelichio and Hafley coached together in Tampa Bay in 2012...Angelichio, Cignetti and Hafley also coached together at Rutgers in 2011 and at the University of Pittsburgh from 2009-10...49ers CB K'Waun Williams played for the Panthers in 2010...Zgonina was an assistant to Packers defense – run game coordinator/inside linebackers coach Patrick Graham when Graham coached the New York Giants' defensive line in 2016...Cignetti was also on the Giants' coaching staff in 2016...Stenavich coached with Packers defensive line coach Jerry Montgomery at Michigan for two seasons 2011-12...Embree was the Colorado head coach during Bakhtiari's final two seasons (2011-12) playing for the Buffaloes...McCartney also served as a graduate assistant at Colorado in 2012...San Francisco pass rush specialist Chris Kiffin worked as an assistant at Southern California in 2010 while Green Bay LB Nick Perry played for the Trojans...Former college teammates include: Packers P JK Scott and 49ers LB Reuben Foster (Alabama), Packers DL Montravius Adams, S Jermaine Whitehead and Coleman (Auburn), Packers RB Jamaal Williams and 49ers LB Fred Warner (BYU), Packers CB Bashaud Breeland and 49ers P Bradley Pinion (Clemson), Packers G Lucas Patrick and 49ers OL Laken Tomlinson (Duke), Packers CB Josh Jackson, 49ers QB C.J. Beathard, TE George Kittle and DB Greg Mabin (Iowa), Packers QB DeShone Kizer, WR Equanimeous St. Brown, 49ers T Mike McGlinchey and Day (Notre Dame), Matthews, Perry and 49ers LB Malcolm Smith (Southern California), Martinez, Montgomery and 49ers G Joshua Garnett (Stanford), Packers DL Kenny Clark and Marsh (UCLA).