Who is the 'next man up' at linebacker for Longhorns after exodus before Citrus Bowl?

The transfer portal and players opting out to prepare for the NFL Draft have decimated Nansen's position group. Anthony Hill and Trey Moore opted out to prepare for their potential NFL careers, and Liona Lefau intends to enter the transfer portal. Lefau looked to be the heir apparent at linebacker once Hill left, something most people within the program expected, but his pivot to move on from Texas will create opportunities for other players.