Two of those are huge losses (Huntley and Moss), plus our LT, but as I've been told here repeatedly, Huntley's garbage, so we'll probably be able to replace him easily, and Utah RBs grow on trees (and there are a bunch of them on the team right now who should be fine).
My much MUCH bigger worry is defense. We lose 3 DL (Fotu, Penisini, Anae), 1 LB (Bernard), 3 CB (Johnson, Nurse, Lewis), 2 S (Burgess, Blackmon), with probably 5-7 of them going to the NFL. That's a LOT of talent and experience.