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TO
Tom O'Brien
HC: Boston College ('97–'06) · NC State ('07–'12)
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TO
Tom O'Brien
HC · 1997–2012
FS
Frank Spaziani
DC · Boston College · '01
→ last Boston College '12
RD
Ryan Day
WR coach · Boston College · '11
→ Ohio State
BH
Brian Hartline
WR coach · Ohio State · '21
→ South Florida
JH
Jeff Hafley
DC · Ohio State · '19
→ last Boston College '23
KC
Kerry Coombs
DC · Ohio State · '20
→ last Cincinnati '22
RD
Ryan Day
GA · Boston College · '04
→ Ohio State
BH
Brian Hartline
WR coach · Ohio State · '21
→ South Florida
JH
Jeff Hafley
DC · Ohio State · '19
→ last Boston College '23
KC
Kerry Coombs
DC · Ohio State · '21
→ last Cincinnati '22
Each box: role · school · overlap years. Bottom line = current job (cyan if active).