I consider that the style of play should not be rigid. You must change it according to the type of tournament and the different stages inside it.
It's not the same as having a big stack, rather than a short stack.
It is not the same to be in the Bubble, in the Beginning, or in the Final Table.
You should also consider your position on the table, in reference to the big stack and short stack.
Your style is the one you apply maybe at the beginning, but if you want to win you have to learn to reinvent yourself according to the moments of the game.