User blog comment:Rollnstoned/Types of Junglers/@comment-5266525-20130811115507/@comment-5266525-20130811185833

Assassins don't keep enemies close to them. Their damage is all frontloaded so they have no need to. That's not even the point though. Assassins like Rengar and Diana (post-6) are significantly better than some of the bruisers you've placed into the Duelist Ganker category. Olaf and Udyr might have 'a lot' of CC, but that CC is tremendously hard to bring to bear against competent opponents. Ask any high-level player if Olaf is a good ganker, and I can guarantee you they will say he's not. He wasn't even a good ganker before they nerfed his Q slow, for that matter.