Pastry is different from cooking because you have to consider the chemistry beauty and flavor. It's not just sugar and eggs thrown together. I tell my pastry chefs to be in tune for all of this. You have to be challenged by using secret or unusual ingredients.
In the past few years we've been doing amazing stuff with desserts. Pastry chefs have been using herbs and spices in their desserts. So vanilla cake doesn't have to be just vanilla it can have a little thyme. Or you could have a custard with a little lavender in it which is just amazing.