Just wanted to add:
as for cooking time and temperature,
James Beard originally recommended a high oven temperture with a shorter cooking time.

I started with what he recommended, but found after years of trial and error, the lower temperature with the longer cooking time that I recommended earlier in this thread, the beef comes out much better.

A wee bit of trivia for James Beard fans:
in the height of his popularity, he was actually listed in the phone book in Manhattan.
The Manhattan phone book had 2 James Beards listed, one as:
James Beard, and one as
James A. Beard

The famous chef, was the one listed in the phone book as James A. Beard.