The problem is how will you find that your tech has stagnated? If nobody experiments with new tech - who will teach others? How will that knowledge come into your corp? Hiring new people to do that will not work, because:
- People being hired will be evaluated by legacy people (different thinking will be considered disadvantage during interviews)
- Legacy people will not listen to new hires since they have no credibility and it "has been the way it was always done"