Hi Anthony - I'm afraid the best I can find is VIRTUE. That certainly means 'quality' in some senses, but wouldn't work very well in your context (i.e. Virtue Improvement Team sounds silly). It's a shame you're restricted to six letters, as there are plenty of other good synonyms.
P.S. Next time you're stuck for synonyms, you might want to try a word finder called WordWeb. It comes in a free version which is fine for everyday words like these.