Trust and faith in God is an added value, and definitely needed, but it’s more than that. If faith was all we needed than we wouldn’t need to go to work either. It goes back to doing your best and then trusting God’s final decision. Tie your camel and then put his trust in Allah. This makes perfect sense. Why would the rope be there, if not to tie the camel? A similar situation comes up with certain people who refuse to take medicine when sick, saying they rely solely upon Allah. Again, why would Allah then create the medicine?
It seems arrogant for a person to think that they are above the needs of ordinary human beings because they think God can do all.