United really had no chance at all of completing their summer schedule. EWR is a dumpster fire of a hub and has very little chance of success. UAL's fleet is really old (over 50% of the airplanes are over 20 years old) and the management/scheduling system is simply not designed for this amount of flying.

It is fun that you are all blaming this on ATC, but the truth is that your management screwed up badly by trying to fly such an aggressive schedule. UAL is getting hammered in what should be the most profitable few weeks in the history of aviation. This disaster is 100% Kirby's fault. There is no way it was ever going to be successful. A good leader would have set a summer schedule that was manageable.