Angular linebacker with endless energy but a level of impatience that can occasionally pull him out of positioning. Liufau plays with good short-area burst and a willingness to step downhill and leverage his gaps. At times, he will move unnecessarily and get trapped behind a second-level blocker or lose track of where the play is headed. Liufau offers third-down value as a spot dropper with good field awareness and might have enough man-cover talent to line up over big slot targets from time to time. He appears to lack the instincts to be a consistent tackle-maker as a pro but does have the qualities to potentially compete as a nickel linebacker with special teams value as a Day 3 pick.
Team leader with above-average production who carries good lean mass on his frame. Bertrand's stats are appealing, and he plays with a decent nose for the football, but his lack of speed and short-area quickness could be a major concern as teams project his ability to keep up with NFL skill players on the move. He needs to get much better at taking on or slipping blocks and finding a way to improve his angles and positioning to become a more consistent tackler. Bertrand could get a look on Day 3, but special teams might need to be his calling card.