Kelsay is the breakdown as he is at the toddler stages of learning a new position. Ignoring that, Kelsay is averaging 4 tackles and 2 assists a game. Not sure about others, but "a lot" isn't usually a number I can count on the fingers of one hand and still have some left over. Keith Ellison is making more plays and is more fundamentally sound than Kelsay.
Sorry, but I never said Whitner was flawless. I've sent criticism his way before, in fact. However, he's not terrible. He has been helping Kelsay quite a bit, especially in coverage where Kelsay is useless.