Do you think it was a mistake to announce something like this without details? What would have been a better option?
I honestly don't think the details will help you, but please surprise me.
Furthermore two seasons in advance without knowing the details is not that far in advance. My time is probably not that different from any other small league team. Out of my top 8 players I only have to Swedes, whereof one is being trained in order to be sold in the near future. In other words I know now that I should
probably try to trade almost my entire team within a couple of seasons.
There are several problems with this and I will just mention three (all related).
First, I would guess that there are quite a few managers that just like me look at the trannsfer as something quit booring, but needed. To force people to spend extra time on the transfer market just because they have to adapt to a sudden rule change is not ideal (even though it might be needed in some cases).
Secondly, on long term it means that teams from small countries will have a very limited market to find my ideal players on. This wll have the consequence that time spent on the transfer becomes more important than actual "team building", making the game more HT-like (i.e. more "mechanical" rather than "intellectual").
Finally, a big part of a longterm game like BB is that you build up "relations" to your players. If you are forced to trade players too often this emotional bond to your team will vanish.