I'm not a cook but the way I understand the Warrant application process it is a lot like 'cooking' vs. 'baking':
The Enlisted advancement system (baking), follows exact recipes- SWE score, Marks, Awards, bake time (TIS/TIG), etc. The Warrant process is like cooking, there are some core ingredients but there are secret ingredients the chefs add and "Bam", selection complete! CWO A