Today, on the Run Culture Podcast I was incredibly fortunate to chat to Shawn Myszka. 
Adhering too tightly to an idealized model can hyper constrain one's ability to adapt to a dynamic world. Many runner's would benefit from having more 'exploration and play' in their practice. This can enhance the; variability, creativity, ownership, authenticity and adaptability of one's actions. 
Over the past 14 years Shawn has worked exclusively with over 100 NFL players as their; 'Movement Skill Acquisition Coach'. He runs an educational group called ‘Emergence’ ( www.emergentmvmt.com) that produces fantastic courses and blogs about the complexities of learning motor skills. He is also known as 'The Movement Miyagi' on twitter. 
Thanks once again Shawn for an enlightening and enjoyable chat that many runners will benefit from listening to!