Just Learned in 2015 - Once you talk L-E-A-N , " Why Why Analysis " is the first step of ladder; "Identifying" "Replication", "Flow Analysis" or for that matter "Perfecting the Cause" comes later. - Also, targeting waste directly with focussed variation (generally, by Trial & Error Method ) helps in eliminating waste in more efficient manner. - Important part of "KAIZEN" , taking feedback from your Human Assets . - At last it's TEAM ( with capital "T" in it) and not just bunch of Individuals.