I know the defending champ gets automatic entry into the WCs, but I've also heard that the defending Diamond League champ gets a bye as well. So for example, if we look at the men's 3000 steeple:
2015 World Champion: Ezekiel Kemboi
2015 Diamond League Champ: Jairus Birech
2016 Diamond League Champ: Conseslus Kipruto
So Kemboi is for sure in, meaning Kenya gets at least 4 entries. But does Kipruto also get a bye as the defending DL champ? Meaning Kenya gets 5 entries? And what about Birech, does he get anything for winning the DL in 2015?