Over time, employees have a tendency to drift off mission in terms of understanding how their job contributes to the goals of the organization. It's a good idea to routinely have an informal discussion when this "drifting" occurs, and remind your employees of the following: 1) explain why their job position exists, 2) the outcomes their job position is expected to produce, 3) the critical behaviors that produce those outcomes and define success, and, 4) the consequences (good & bad) for not producing those results. While you're at, a big thank you for their efforts to date will go a long way towards refocusing them back on the mission.