WN taking steps to improve on-time performance:

http://www.azcentral.com/travel/arti...val-times.html

"The airline is asking employees to focus on getting the first flights of the day out precisely on time — not just within 14 minutes of schedule, the government’s cutoff for an on-time flight — because even a couple-minute delay can cascade into more sizable delays as the plane traverses the country during the day, Kelly said."

I'd have thought a 10-year-old could have figured that out.