Editor's note: This story was originally published on May 30, 2017.
Key returnees
CB Jordan Thomas -- Sr.
CB Jordan Parker -- Soph.
S Steven Parker -- Sr.
CB Parnell Motley -- Soph.
S Chanse Sylvie -- Soph.
S Will Sunderland -- Jr.
S Khalil Haughton -- Jr.
Key losses
S Ahmad Thomas -- graduation
CB Dakota Austin -- graduation
CB Michiah Quick -- graduation/dismissed
CB Parrish Cobb -- suspension
CB P.J. Mbanasor -- transfer
Newcomers
Robert Barnes (4-star)
Justin Broiles (4-star)
Tre Brown (4-star)
Ryan Jones (4-star)
Tre Norwood (3-star)
Biggest unanswered question
Can Oklahoma's secondary turn it around after a statistically bad 2016?