After July 25, the Mets led the NL in runs scored. The Cubs were second. Out were the punchless Mets of the early season, and in was an offense capable of doing consistent damage.
And why not? This was a different lineup in the second half of the season. The addition of the explosive Yoenis Cespedes was the biggest change. But there were other changes, including the addition of the extremely useful Kelly Johnson. The emergence of Michael Conforto helped, too.
After July 25, the Mets also led the NL in home runs and slugging percentage.