So, we can't hire somebody on staff who hasn't lived outside his one and only HC's shadow, but hiring somebody from a different school (whose defenses have regressed every single year he's been the DC) who has a very similar coaching resume is fine.
I understand your criticisms of Howell (even though I think you've gone overboard in your offseason crusade against him), but I just ask you stay consistent, then. The only real difference between the resume Howell is building and the one Sitake has is the color of Howell's skin.