Transfer Updates - Question

Hi.I don't know if i should start a new game with updated transfers from January or to don't download it and just start it with the original squads.Pity that the players are already playing in their new teams before their real transfer dates.What do you guys think?Do you start your new games after January with updated transfers or not?Thanks in advance.

ive downloaded the fm updates but cant seem to play with em could any one help me out thanks

Easiest thing to do, load up Brazilian league and start the game in their time, which is December 2013. You'll be closer to when every player joined.