Napoleon exploited ambiguity, deception, and mobility at the strategic level,
whereas,
He increasingly emphasized formal battering ram methods and de-emphasized loose, irregular methods (e.g., skirmishers) at the tactical level—via a return to, and increasingly heavy-handed application of, the 1791 Drill Regulations.
Why?
Napoleon emphasized the conduct of war from the top down. He created and exploited strategic success to procure grand tactical and tactical success.
To support his concept he set up a highly centralized command and control system which, when coupled with essentially unvarying tactical recipes, resulted in strength smashing into strength by increasingly unimaginative, formalized and predictable actions at lower and lower levels.
Result
Strategic maneuvers ambiguous and deceiving prior to tactical concentration; after concentration, “maneuvers” stereotyped and obvious.
hence
Tactical “maneuvers” could not easily procure the victory because of their obvious, predictable nature.