I'm not sure Hill is even deserving of a starting spot on the team. Definitely several other guys who could fill his role as well as or maybe better than him.
The DL as a whole is very deep with solid guys, but no stars. Maybe Bosa breaks out this year. Would not consider any of them even close to indispensable.
In the secondary, we return Webb, who was pretty average last year, and Ward, who played a lot and improved and could be in line for a breakout season. If Ward takes that leap and becomes a lock down #1 CB then he has to be very high on our list. However, without such a leap the young talent and juco Sheffield could man the CBS positions pretty well. Would anyone really be too worried with a secondary of Sheffield, Okudah/Wade, Fuller, and Smith/Webb?
Right now I would have to go with Chris Worley. He is a leader on the team and will be even more so this year as a senior and the MLB. Baker would be right there as well as a playmaker and overall excellent player. But Worley's experience, versatility, and leadership, in addition to being a very good player, are him slightly more valuable to this team.