Why did we do that?
Reasons are always more complex than we remember. More often than not, there are many reasons for past choices and the ones we remember may no longer be valid on their own. When a team fails to update the “why” behind their methods, their effectiveness will suffer. Airtight reasons of the past become irrelevant. Sacred cows that were born through solid logic linger to the point of silly sentimentality. Time changes everything and great teams accept that.