Changing the way players throw outside their Natural Motor Preferences in an attempt “improve” or “fix” players’ mechanics or movement patterns into their beliefs is often met with failure because those who were attempting to make the changes do not understand the complexities of changing individual motor patterns.

For Tim Lincecum this most likely led to a Velo drop and command issues in 2012, but even more important, it probably had a big impact on the creation of his severe hip injury.