Feasible lean practices

There are more than 100 lean practices/tools being practiced by the industries.  What are the tools should be practiced first? This is a dilemma to the manufacturers to choose the right tools.  Should they just copy from other companies?  Don't just copy ..but, the correct way is to adapt the right tools. Top management and shop floor should support each other in order to success in lean manufacturing.  I could said that most of the companies failed in lean were those top management who are not committed to the implementation.  Therefore, I personally advice the interested companies to go for a training first before really to embark lean manufacturing.  Look at lean pillars.  First, set up lean foundation in organisation.  Arrange a training for top management and shop floor.  Let them understand the theory of lean . Try first...and see the result.