You don't have to find out what someone's mechanical abilities are. All those factors are already a known commodity. I've seen teams win championships and have their entire team quit the next day because they weren't happy. ↗
Because of recent improvements in the accuracy of theoretical predictions based on large scale ab initio quantum mechanical calculations, meaningful comparisons between theoretical and experimental findings have become possible. ↗
If you start any large theory, such as quantum mechanics, plate tectonics, evolution, it takes about 40 years for mainstream science to come around. Gaia has been going for only 30 years or so. ↗
The south produced statesmen and soldiers, planters and doctors and lawyers and poets, but certainly no engineers and mechanics. Let Yankees adopt such low callings. ↗