You need to be very careful, for example, the follwoing tips may help
1. Be realistic with your team talks, ie. at 3-0 down, dont say 'I expect a result'.
2. Dont fine a player unfairly ie. If he has never been sent off, dont fine him 2 weeks wages, a warning will suffice.
3. The only way to build understanding is just as you go through your career on the game, it takes a while, but it gets there.
Hope this helps.