Middle management is also where the change often succeeds or fails — they have the power to make sure that things really change in day to day work and the change program stays on track.
One more time: change is a game of mind
Liisa Holma

Extremely important — I’m in a business where there are more hurdles to jump and deeper politics in the higher leadership levels — but many times, the bigger culture change is driven by the entry level leader/employee much more efficiently