I am not a Betsy DeVos fan, but I think public schools put themselves in a vulnerable position by limiting the ways in which they are willing to be innovative. The base position for public schools seems to be assuming a traditional staff of teachers and administrators. This finance focused blog post argues that the staffing costs of schools on average make up 81% of the budget and within a minimal resource environment this limits what changes can be made.
Private schools do not necessarily start from the same assumption (from the finance article):
For example, the often touted Rocketship model (a chain of charter schools), makes extensive use of learning lab time in which groups of 50 to 70 (or more) students work on laptops while supervised by uncertified “instructional lab specialists.”
I cannot claim that this is wise and I am sure many would argue this is horrible, BUT such options do allow significant innovations to be tested. Just for sake of argument, it might be suggested that such an approach offers some similarities to a “flipped model”. If presentation-oriented tasks can be completed in a more efficient manner, interactive experiences with experienced teachers might occur at a higher rate.