In our company ops are probably seen to have the most responsibilty. As for workloads I personally think that crewings will always generally be higher especially when things go wrong. For example when ops have to swap aircraft around if one goes tech it takes them 2 mins to swap them around but for every aircraft strip they move we have on average 9 crew to move. Having said that I've witnessed the ops people tearing their hair out when there having a nightmare with slots, and we could be sat there with our feet up! swings and roundabouts!