How to track pitching efficiency, and why it matters for fantasy

While working yesterday afternoon, I had the New York Mets-Philadelphia Phillies game on my TV, without any volume. Because my focus was split, I thought maybe there was something wrong with the broadcast or that perhaps the feed might have frozen: I'd look up and Jacob deGrom was on the mound in a scoreless first inning with two strikes on the batter, who would foul a pitch off. I'd take another glance and the same thing would happen -- again and again. I was beginning to get the feeling it was Groundhog Day and not Mother's Day.