I wonder if Forrest is a future Ayers replacement.
He looks the part.
He could be many things in depth before that.
If he ends up replacing Ayers down the road (and Ayers has only 2016 left on his contract) then the Rams would have, in base defensive sets, 3 converted LBs.
Barron was a safety in college, Ogletree was a safety converted to a backer in college, and Forrest started out as WR in college before playing as a hybrid linebacker/safety.