Do you think this is a new development in baseball?
The game was played professionally for 30 years before anyone even thought of ERA and batting average. Before 1900, pitchers were evaluated solely by wins and losses. Of course they were also expected to throw complete games and ERA was created to measure a bold new strategy called “relief pitching.”
It wasn’t until the 1940’s that Branch Rickey devised “slugging percentage.” And probably to a slew of complaints of “what’s wrong with just batting average? It was good enough for Rogers Hornsby!!”
In the 1960’s, a whole new stat called the “save” was invented. And it was redefined multiple times.
In the 1980s, OPS came about. It took over a decade to catch on. But it did catch on faster than SLG, which became an official stat in 1984.
This is all nothing new. There were fans turned off by every stat I mentioned. Yet baseball survived.
The biggest mistake people can make is assuming the way they’ve always known something is the way it always was....