My TPI Advice

Can be summed up as follows:

• Research all models.
  
• Use models as an "a la carte" menu.
  
• Create a model that suits your context.
  
• Continuously improve the process.
  
• Don't try to do everything at once.
  
• Establish a cadence of continuous improvement.
  
• Lean principles break down barriers, & thus work best when a senior leader champions them.
  

And don't forget:

• Measure where you are before you start.
  
• Decide where to go.
  
• Communicate at all times.
  
• People make it all work!