Stokes has made nine starts so far this season with 13 tackles in his initial season. Roberts started 10 games in his two seasons in Norman but played sparingly with no tackles in his first season in 2015.
Faamatau has played in 40 games with 31 total tackles in three seasons, though he has just six this season.
The other two were little-used. Both Quincy Russell (2013) and Chaz Nelson (2012) arrived with the expectation that they would contribute immediately. But Russell played in just two games as a Sooner while Nelson played in 13 games in 2013 after redshirting his first season at OU.