Read more details in their proposal:
https://bifrost.subsquare.io/posts/91

calls

Executed

Origin commanded by any members of the Polkadot Fellowship (no Dan grade needed)

Origin commanded by rank 1 of the Polkadot Fellowship and with a success of 1

Origin commanded by rank 2 of the Polkadot Fellowship and with a success of 2

Origin commanded by Polkadot Fellows (3rd Dan fellows or greater)

Origin commanded by rank 4 of the Polkadot Fellowship and with a success of 4

Origin commanded by Polkadot Experts (5th Dan fellows or greater)

Origin commanded by rank 6 of the Polkadot Fellowship and with a success of 6

Origin commanded by Polkadot Masters (7th Dan fellows of greater)

Origin commanded by rank 8 of the Polkadot Fellowship and with a success of 8

Origin commanded by rank 9 of the Polkadot Fellowship and with a success of 9