90% of your work is for less than %10 of your clients, whether your "clients" are internal or external to your organisation. Sack these clients where ever poss

90% of your work is for less than %10 of your clients, whether your "clients" are internal or external to your organisation. Sack these clients where ever possible, (when they are not 90% of your income). You will be more productive, happier, and all your remaining clients will be happier as well.