[Nufaciel]

continued:

"Radagast the Brown !' laughed Saruman, and he no longer concealed his scorn. 'Radagast the Bird-tamer! Radagast the Simple! Radagast the Fool! Yet he had just the wit to play the part that I set him.'"

Whereas in the essay on the Istari it is said that the two who passed into the East had no names save Ithryn Luin "the Blue Wizards" (meaning of course that they had no names in the West of Middle-earth), here they are named, as Alatar and Pallando, and are associated with Oromë, though no hint is given of the reason for this relationship. It might be (though this is the merest guess) that Oromë of all Valar had the greatest knowledge of the further parts of Middle-earth, and that the Blue Wizards were destined to journey in those regions and to remain there.
Beyond the fact that these notes on the choosing of the Istari certainly date from after the completion of The Lord of the Rings I can find no evidence of their relation, in time of composition, to the essay on the Istari. 7