I don't think I've ever had a schedule change that didn't go my way in the end. This weekend, I got my EWR-PDX reservation kicked back by 45 minutes, and my PDX-EWR return with a connection in SFO down to 30 minutes. Got the agent to route me EWR-IAD-PDX - not ideal, but it now gets me to Portland at 8:30pm instead of nearly 11. I then changed return to PDX-DEN-EWR, which gets me home 2 hours earlier as well.