I don't know if someone brings this before...
To be closer to reality when you manage national teams, the ability to train players when they are on national duty. Just the fact to train some set pieces or something similar, cloud make a difference.
Also making possible to take a camp training before a big competition (World Cup, Euro...), and in addition to this to be able to choose where be taken the camp.
For example, just like Germany in 2014 when they arrive in Brazil before the competiton began to prepare and get used to the clime.