We have a lot of effort looking at structural balance, distribution percentages, speed endurance reserve ratios, and countless other profiles. Strangely the the spine function community seems to get lost past birddogs, side planks, and seated rotational screens. What I like about Craig Liebenson is that he seems to network with coaches instead of being isolated in the rehabilitation mindset. Besides Paul Chek, not much systematic core training is available, regardless of philosophy. Over the last year or two I have been crowd sourcing solutions with coaches that are consistently producing great athletes with all ranges of talent. Collectively we have been creating a scoring method to ensure spine function is improving with both programming. A good start in creating a complete core competence system is the book Rehabilitation of the Spine, and Modern Spine Function and Training Design is an excellent manual if you can find it.