You might be right, but he's got the size, range and toughness to play any style of defense. I think he'd be another Harris for the Jets and 2 of those type of LBers in this defense wouldn't be a bad thing.
Still I see what you are saying. In a 4-3, he's a tackling machine, free him up and he'll be a special pro... better for him for sure.
He is smart, tough and a leader but I dont think his skills are what our defense lacks. We need fast, athletic guys who can go sideline from sideline and who can cover. Against NFL competition Kuechly will struggle in those areas.