As a manager or team leader it's really important that you quickly recognize when there's a lack of motivation on your team.
1. First you want to figure out what's going on. You want to talk to your team members to figure out is it a matter of lack of communication. Do people feel left out of the loop? Or do they find the work not inspiring. Or perhaps it's too much work, or even too little work so people are checking out because they feel bored.
2. Then when you are dealing with your entire team you want to make sure that you publicly recognize and celebrate all contributions regardless of how small or how large the role was that the employees play on a project.
3. You want to make sure that you promptly respond to calls or emails from your team members. Even if it's just to send a short message to let them know that you received that call or email.
4. Make sure that you keep your appointments whether those are one on one conversations and also to be on time for all team meetings. That shows that you value your employee's time as much as you do your clients or even your own manager.
For more strategies on how to assess and sustain team morale, view my videos on Teamwork & Motivation at: http://smallbusiness.chron.com/teamwork-motivation-74604.html