THIRD AND DATA

Coaches

Harlon Barnett

His career from Wikipedia, each job checked against the team-season pages (✓ = a second source agrees, ≠ = they disagree)

All coaches

Harlon Barnett

Played at Michigan State 1986-1989 · alma mater (CFBD): Michigan State

Source: Wikipedia, read 2026-10-26

YearsTeamRoleTitleHead coach
1998-1999Princeton HS (OH) (HS)PositionDBnot known
2000-2002Princeton HS (OH) (DC) (HS)Head coachHead coachhimself
2003LSUGAGANick Saban
2004-2006CincinnatiPositionDBMark Dantonio
2007-2014Michigan StatePositionDBMark Dantonio
2015-2017Michigan StateDCAHC/co-DC/DB✓Mark Dantonio
2018-2019Florida StateDCDC/DB✓Willie Taggart
2020-2023Michigan StatePositionDBMel Tucker (2020-2022)
2023Michigan StateHead coachinteriminterim HCnot known
2024-2025NorthwesternPositionAHC/DBDavid Braun*
2026-PittsburghPositionAHC/SPat Narduzzi*

Record

Confirmed coordinator seasons since 2005. FBS rankings

SeasonTeamJobEPA/playPoints/poss.SuccessYear beforeTeams
2015Michigan StateCo-defensive coordinator46375625128
2016Michigan StateCo-defensive coordinator59715046128
2017Michigan StateCo-defensive coordinator34252259130
2018Florida StateDefensive coordinator29623827130
2019Florida StateDefensive coordinator42527829130
SeasonHead coach atRecordAP before → afterOff EPA/playDef EPA/playSP+Team year beforeTeams
2023Michigan State2-8 (10 of 12)- → -13283-6.842% wins133

Worked under

His tree

Coaches who were on his staffs

On his staffs · 4

Coached together

  • Derek Dooley · LSU 2003 · him GA, them Other, Position
  • James Coley · LSU 2003 · him GA, them GA
  • Jimbo Fisher · LSU 2003 · him GA, them OC, Position
  • Lawrence Dawsey · LSU 2003 · him GA, them GA
  • Mike Collins · LSU 2003 · him GA, them Position
  • Nick Saban · LSU 2003 · him GA, them Head coach
  • Tim Walton · LSU 2003 · him GA, them Position
  • Dan Enos · Cincinnati 2004-2005 · him Position, them Position
  • Don Treadwell · Cincinnati 2004-2006 · him Position, them OC
  • Mark Dantonio · Cincinnati 2004-2006 · him Position, them Head coach
  • Mike Tressel · Cincinnati 2004-2006 · him Position, them Position, ST coord.
  • Pat Narduzzi* · Cincinnati 2004-2006 · him Position, them DC
  • Dan Roushar · Cincinnati 2005-2006 · him Position, them Position
  • Brian Kelly · Cincinnati 2006 · him Position, them Head coach
  • Jeff Quinn · Cincinnati 2006 · him Position, them OC, Position
  • Dan Enos · Michigan State 2007-2009 · him Position, them Position
  • Dan Roushar · Michigan State 2007-2012 · him Position, them OC, Position
  • Don Treadwell · Michigan State 2007-2010 · him Position, them Head coach, OC
  • Mark Dantonio · Michigan State 2007-2017 · him DC, Other, Position, them Head coach
  • Mike Tressel · Michigan State 2007-2020 · him DC, Other, Position, them DC, Position, ST coord.
  • Pat Narduzzi* · Michigan State 2007-2014 · him Position, them DC
  • Brad Salem · Michigan State 2010-2017 · him DC, Other, Position, them Other, Position
  • Rob Harley* · Michigan State 2012-2013 · him Position, them GA
  • Dave Warner · Michigan State 2013-2017 · him DC, Other, Position, them OC
  • Jim Bollman · Michigan State 2013-2017 · him DC, Other, Position, them OC, Position
  • Mark Snyder · Michigan State 2015-2017 · him DC, Other, Position, them Position, ST coord.
  • Alonzo Hampton · Florida State 2018 · him DC, Position, them ST coord.
  • Mark Snyder · Florida State 2018-2019 · him DC, Position, them Position, ST coord.
  • Mickey Andrews · Florida State 2018 · him DC, Position, them Other
  • Odell Haggins · Florida State 2018-2019 · him DC, Position, them Head coach, Other, Position
  • Raymond Woodie Jr. · Florida State 2018-2019 · him DC, Position, them Position
  • Walt Bell · Florida State 2018 · him DC, Position, them OC, Position
  • Willie Taggart · Florida State 2018-2019 · him DC, Position, them Head coach
  • Jim Leavitt · Florida State 2019 · him DC, Position, them Analyst
  • Kendal Briles · Florida State 2019 · him DC, Position, them OC, Position
  • Mark Cala · Florida State 2019 · him DC, Position, them GA
  • Ron Dugans · Florida State 2019 · him DC, Position, them Position
  • Chris Kapilovic · Michigan State 2020-2023 · him Head coach, Position, them Other, Position
  • Jay Johnson · Michigan State 2020-2023 · him Head coach, Position, them OC, Position
  • Mel Tucker · Michigan State 2020-2023 · him Head coach, Position, them Head coach
  • Ross Els · Michigan State 2020-2023 · him Head coach, Position, them Position, ST coord.
  • Scottie Hazelton · Michigan State 2020-2023 · him Head coach, Position, them DC
  • David Braun* · Northwestern 2024-2025 · him Other, Position, them Head coach
  • Tim McGarigle · Northwestern 2024-2025 · him Other, Position, them DC, Position
  • Zach Lujan · Northwestern 2024-2025 · him Other, Position, them OC, Position
  • Cory Sanders · Pittsburgh 2026 · him Other, Position, them DC
  • Kade Bell · Pittsburgh 2026 · him Other, Position, them OC, Position
  • Pat Narduzzi* · Pittsburgh 2026 · him Other, Position, them Head coach

Played together