In order to develop athletes who can move optimally in multiple planes of motion, training should include elements that can challenge them in multiple planes while providing various resistance and proprioceptive challenges.
In this Bridge video, Loren Landow, from Landow Performance, demonstrates exercises and techniques of various plyometric movements for anterior cruciate ligament (ACL) strength and injury prevention.
This excerpt from Developing Agility and Quickness provides a needs analysis for field hockey and possible program design options for optimal performance outcomes.