Pay for more outside training. Every person should sign up for a Dale Carnegie course, and the company should pay, gladly. Teach an equal amount of sales and personal development. Courses in positive attitude, goal setting, listening and responsibility are vital for the success of anyone in any company. Train every day, even if it's just for 15 minutes.
Weekly meetings are great but daily training is necessary.
One new spark every day keeps the brain on fire. Harness the power of encouragement. Think how much you hate the process of threats and deadlines. Don't use negative tactics. Be funny and be relaxed.