Quotes from Ken Schwaber

Scrum is like your mother-in-law, it points out ALL your faults.

I estimate that 75% of those organizations using Scrum will not succeed in getting the benefits that they hope for from it.

A manager's most important work is helping the people doing the work. Give them a goal and let them work. Remove any impediments that get in their way. Do anything that may make them more effective or productive. Then the organization can capitalize on the fruits of their work.

Common sense is a combination of experience, training, humility, wit, and intelligence.