Technology has changed many industries including the practice of law.
True, many younger attorneys do their own typing and legal research, but I find it unethical to bill clients attorney rates for work that should be done by a paralegal or legal secretary.
I and my eldest son are the only members of my firm that have private secretaries, and these do work related to non-law firm family business (our own charitable and family trusts and investments) as well as certain discreet work that is not to be seen on networked computers.
We have no pool secretaries. We do have a closing secretary for real estate and a custody/visitation secretary for family/probate court.
Paralegals may have specialties and work in our departments such as Trusts and Estates or Contracts.
This is what works for us. It is far different from when I was starting out 40 years ago and Mrs. CTL and our mothers often took files home to type, trying to keep the carbon paper aligned,,,,,,,,,,,,,,,