"These new additions to our staff bring not only tremendous coaching expertise, but they are outstanding recruiters and good, solid people," Sarkisian said in a statement released by the university.
Already in place on USC's staff are retained coaches Tee Martin and Clay Helton. Sarkisian announced shortly after he was hired at USC on Dec. 2 that Johnny Nansen, Keith Heyward, and Peter Sirmon would also be on his new staff, following him from Washington.
Currently five of Sarkisian's eight hires spent at least a season coaching under him with the Huskies.
Wilcox joins the staff as the Trojans' defensive coordinator. He was long rumored as Sarkisian's top-target for the position.
Tuiasosopo was initially announced as the tight ends coach, though Sarkisian has since told the LA Daily News he will also hold the title of associate head coach. He was reportedly offered the position as tight ends coach on Chris Petersen's Washington staff.
Drevno joins USC from the 49ers, where he served as an assistant offensive line coach for the last three seasons. From 2007-10 Drevno was an assistant offensive line coach at Stanford. He'll hold the same position at USC and will also be the run-game coordinator. Drevno has coached under Jim Harbaugh for the past nine years.
"[These coaches] are great additions to the USC football program and the Trojan Family," Sarkisian said.
Sarkisian also announced the hiring of Ivan Lewis, the strength coach at Washington, who will takeover the position at USC.
He has yet to name a defensive line coach.
USC coaching roster
Head coach – Steve Sarkisian
Offensive coordinator & quarterbacks – Clay Helton
Offensive line & run game coordinator – Tim Drevno
Receivers coach – Tee Martin
Tight ends & associate head coach – Marques Tuiasosopo
Running backs & Special teams – Johnny Nansen
Defensive coordinator – Justin Wilcox
Linebackers & recruiting coordinator – Peter Sirmon
Defensive backs – Keith Heyward