I disagree. During Miller's time, 75% of test cricketers were amateurs with other major professional obligations; that number was 10% in Viv's era, and close to 0 by the end of it. It was a seismic shift in professionalism.Anyone acting like how Standard of the game went so much higher in 15 Years between Miller and Viv and hasn’t changed at all between Viv and Now in 3-5 decades has rocks in their head.
Hell, during Miller's era, England didn't have a professional test captain until 1952.
West Indies had to be captained by a white guy.
India and Pakistan barely existed.
The huge change happened between the 1950s and 1970s.