As a company grows, things that worked when you were a startup might very well trigger your downfall. For example, what works in parenting a 2-year old will not work when they are a teenager. Moreover, what I say as a soccer coach to motivate my players during practice does not work during a game.
Because things are constantly changing, every strategy that leads to success and progress can ultimately become the one that leads to failure and missed opportunities.
Are your previously successful strategies the ones that you want to keep using? Conversely, are the approaches that you once rejected perhaps appropriate in your current situation?