I hear what you and GEL are saying and to an extent I would agree. Let me use the analogy of a baby vs. an adult. A baby needs to have milk first, after a while, the baby can go to solid foods. An adult, however, needs solid foods. Okay, so let me apply this to the church. The regular congregation is going to need the solid foods...there's no arguement there! In that setting we should be preaching the pink part. However, for someone who is visiting, that person who is trying to get back into church or has been going to church but is questioning their current church, they need the milk! If you give them the solid food, they will most likely choke. They simply aren't ready to handle that much of the truth this quick. The end result is that they are going to consider the service a negative experience and most likely will never come back. Where will they go? If we are lucky, they will most likely go to a church that will feed them the milk...but never prepare them for the solid foods. At that point, we've done a huge injustice to that person who is seeking. If we are unlucky, they will abandon church altogether.
So what do we do? At the moment, I'm sold on a particular solution. During the regular service, the orange part is preached. Wednesday service, small group bible studies, recommended reading lists (thanks NicodemusPrime, I'm stealing some of your ideas), etc. However, it can't end there. These new people need to go through an education system of their own outside of the Sunday service...one that will prepare them for the pink service.