Nats P/IP was 17.17. 29th in MLB, and just 0.05 lower than the A's. Ol' man Hickey didn't care much for the "analytics stuff".
Its not analytics. Its simply a measure of the capability of the pitching staff to throw strikes. And it doesnt necessarily correlate to anything.
The Cardinals had the 4th fewest P/IP but were 21st in ERA. The Dodgers were 21st in P/IP but were 16th in ERA. Cleveland and Milwakee, both hyper analytically driven, were simply middle of the pack in this P/IP.