The Rotator Cuff is an infamous area for pain, niggles and injuries that grind training to a halt... but many Rotator Cuff injuries are caused because your shoulders are not being moved in the right ways.And one of the worst mistakes is then trying to blame just one of the 4 Rotator Cuff muscles, it narrows the focus way too much and causes focus to be put into very isolated movements, and missing the full picture.A unstable shoulder with poor range of motion will always cause problems, no matte