private ArrayList<Worker> jobWorkers(String job, Day day, ArrayList<String> workersWorking) {
           ArrayList<Worker> workersForJob = new ArrayList<Worker>();
           for (Worker worker : this.workerIndices.get(this
                     .numForName(day.getNameOfDay()))) {
                Day workerDay = worker.getDayWithName(day
                           .getNameOfDay());
                if (workerDay.getJobs().contains(job)
                           && !workersWorking.contains(worker
                                     .getName())) {
                     workersForJob.add(worker);
                }
           }
           return workersForJob;
     }