The employment of an in-house medical team, who get familiar with individual players, rather than the locum-like arrangement of last season is IMHO the best signing of the summer.
I think this idea of long- haul flights being tiring for the fittest guys on the planet is questionable. Being rich, they would travel 1st/ business class and have a bed so would sleep as normal. I regularly take 12 hr flights booking business class which provide a bed and suffer no fatigue/jetlag on arrival....and am an old man into the bargain.