I would 1st set all players settings as those are the settings that will remain the same for most of the time, you change the main setups and settings throughout the season and even throughout matches as the main settings change the characteristics of the entire team, instead of changing individual player settings all the time. Also because you can have multiple setups, changing player settings will change how the different main setups work, every time you changed a player's settings. So find a base setup that you use for all your players, then once you found that base setup with which your players are comfortable playing, you start creating your main setup to work with your now setup players. Once you created a setup with which you win games and with which you relatively happy, remember when you run into a team you cant beat, don't go change settings on the setup you created and which worked fine against other players and so mess it up, rather create another, new setup and work on it to beat the teams the other setup didn't work against.
People can give you setups and they may work for you or not as setups success is determined by your players, so getting setups from people isnt gonne be of any use to you in the long run, a much better way going about it is to figure out what exactly the different settings do, that way when you watch your team play you can see immediately which problems there are and know which settings is responsible for causing the problem