Radagast's Whereabouts and Gandalf's Plan...

[Lhunardawen]

Blue Wizards? Oh heck no. If he wanted to look for the Blue Wizards, he would have done it a LONG time ago.

It would be hopeless for him to do that.
I read in "Unfinished Tales" that there is a possibility that the Blue Wizards were enticed by Sauron and became his... you know!
That is just a possibility, but no one really knows.

As for the path of Gandalf, definitely it is not were Frodo and Sam were led by Gollum. Maybe they shouldn't even have met Faramir if they were going Gandalf's way, if they knew it. Remember Gandalf's reaction while Faramir was speaking to him (and to Denethor) about the two hobbits?