RBI had come to be treated by baseball people as an individual achievement—free agents were paid for their reputation as RBI machines when clearly they were not. Big league players routinely swung at pitches they shouldn’t to lard their RBI count. Why did they get so much credit for this? To knock runners in, runners needed to be on base when you came to bat. There was a huge element of luck in even having the opportunity, and what wasn’t luck was, partly, the achievement of others.