Weren't people saying Leonard played at 215lbs this season? I don't think JOK has Leonard's instincts, but he has more explosiveness and athleticism.
The end all answer to our LB woes isn't just "get a big body." I'm so tired of hearing that. It's also about schemes and gap play and the aggressiveness of your backers. Our linebackers constantly get met downfiel by OL because they sit there and wait. Not just because there isn't enough beef up front. It's schematic and a symptom of having two finesse backers.
Even at 215, if JOK is willing to fire through gaps, instead of sit and wait, he can play the position. That said, most backers put on 10-15lbs when they get into NFL programs and their metabolism slows down. JOK at 225 is more than enough meat to stack and shed as long as it's done with decisiveness and aggression. No more of this letting the OL come to you BS Jaylon does.
All that said, I wouldn't take him at 10. Late teens is his sweet spot I think. If Surtain isn't there at #10, I'm trading back or taking Leatherwood.