I apologise that my question isn’t really related to this topic but I didn’t think my question warranted its own thread. Being new to American football, I’ve been struck by how separate the defence and offence units seem to be. Do both units and the special teams spend much time together? Do the coaches of each unit spend much time talking or do they stick with their own people? Would a position coach on the offence be cranky if a defensive coach had an idea to improve one of the offensive players?