Robert Saleh is an omen: 6 signs that the 49ers’ luck might be changing (paywall)
“[Shanahan] won’t have to check in to see if the system is being applied correctly (like he did with Wilks) or if the DC is ready for this (like he did with Sorensen). He won’t have to worry that the DC isn’t energetic enough. He won’t have to check the temperature of the defensive players to see if they’re onboard. He’ll also have somebody who might push back at some Shanahan decisions, which was always a healthy thing during Saleh’s first DC run.