In an organization like Campus Crusade, which has been around for over 50 years, this statement could potentially be seen as heresy. We as an organization have lived out and tried literally millions of different ways of sharing the Gospel.
Our age, just like the age of our lives, presents strengths and weaknesses. Because we are old, we have a collective wisdom and discernment that translates into great focus and stewardship. Because we are old, we also are very 'set in our ways' and threatened by change, especially the change that Brueggemann talks about in his book; the kind that the Lord brought about through Moses in Egypt.
I sincerely believe that God wants to do something 'new' in the sense of the definition above in Campus Crusade. I believe that we need to appropriate this newness by stepping out in faith in 'new' ways. Unless we sincerely begin trusting Jesus for 'new' things, then we have no excuse or reason to blame or even be frustrated about the way things are. If we just sit back and criticize, then we are just as disobedient as those who know what needs to happen to produce change and chose to instead maintain the status quo. Lots of cliches in this last sentence, but you see what I mean.
Moses' and Aaron's journey of following God in this process of seeing something 'new' happen was arduous, disheartening, enlightening, empowering, and redemptive all at once. I doubt they look back on that time and wish that they had catered or listened more to the people than the Lord.