Here is an excellent article by Jesse Noonan at GDT about why today, in the middle of COVID-19 craziness, is a good time to be thinking about an architectural shift in data center design.  What I find insightful are the lessons we can learn today based on similar periods over the past 40 years of IT history.  Additionally, there are links to two talks given by Sounil Yu, former Chief Security Scientist at BofA, about getting security to a 'solved state.'  Both are exceptional and worth watching.