I only farm greens really ,25 for storage and then 11 for restoration after training. Leaves 4 left over which these days goes to morale (until Nordeus change something again) ,medical treatment and cash are a waste of time once you get past about level 4-5. I find as long as your players morale is rated at least good then everything is fine ,no need to max things out until you get to a big game such as CL semis or finals ,top of the table matches etc.