It matters, but I don't think its as vital as most.
Of course I would rather we had them in earlier, but sadly factors determine that cant happen.
The only way we can force teams to sell early is to buy on their terms, we need to play the longer game.
I think players need longer than preseason, sure a bit of time together is great, but they will be aware of their teammates roles and it shouldn't take a good player longer than 30minutes to work out how their teammates play. Gelling and playing well as a team is built up over a period of months under match conditions.
IMO.
This is bang on, a successful team will be built over many months on the training pitch through repetition and hard work, it most definitely isn’t an overnight job. It’s one of the reasons sensible managers don’t like wholesale changes , you need a stable core who already know each other to build around.
There is another aspect here in the psychological dynamic of the group.
In the ideal world a team is tight nit gang of players who like , respect and support each other. But the reality is like any group, players may dislike each other , small cliques can form , disruptive enmities can emerge and fragile egos must be cared for. It’s why most managers prefer to work with a small squad rather than a sprawling one.
In many ways this psychological management is the most important skill of managing in any area of work not just sport and is something ,by all accounts, Ancelotti excels in. It is also something that we disregard in general because it is mostly hidden from us , only becoming apparent when players publicly fall out or rebel against the manager (which is a catastrophic failure of management).
And , yes, all this takes time , certainly longer than two weeks and a handful of friendlies