Improvement is possible and Arsenal showed it this season hiring new guy and dropping their injuries by 50%. Of course you can't avoid all injuries but just as you need world class players to beat other teams you need world class medical team to have as low number of injuries as possible. I'm not sure our are Barcelona of medical teams. Not even City.That season was the exception, the Times printed an article the other day showing how Injuries for the Premier league have gone up over the past few years. They also printed a league of injuries over the last few years and we were very much mid table, so about average not the best but far from the worst. Considering our players play and travel more than most I'm not sure we can expect any great improvement.