drippin
Like I said: I replace your reality with my own !!
Imagine what kind of information clubs and managers have in training, when they have so much on match days....
As the other poster above has said there are no guarantees in football.
...
Competition means earning your place. Competition means turning up every single day and proving you are better in training than the next man. Fail to do that then fail to get minutes.
Arteta as a former player surely observes a lot what happens in training, so he might have some information we don't, when selecting players and understanding his decisions.