Darius Butler said on PMS that there are like 4 fg teams, base, nickel, dime were 3 that he stated. On fast change kicks the personnel is based on minimum subs to line up correctly. There was clearly a miscue on what group needed to be on the field

One of the biggest things I think they will accomplish is working to design more specific helmets for specific positions. They’ve already started working on it and in theory can decrease the impact on the brain from all the linemen hits by designing the helmets differently, just as they could work on creating a helmet for QBs that can reduce the risk of concussions from hitting their head on the ground while being tackled backwards.