I'd take Felton in a heartbeat, but I don't agree that we NEED a backup pg. And those deals look pretty one-sided to me. Why would anyone want four mediocre pieces for one good one. That's not how you win.
My solution for this year is to play Rondo 42 minutes a game in the playoffs. For backup we either stick with Eddie, or if Pruitt actually steps up and shows something(which he really hasn't), use Pruitt as backup. It's not like Rondo couldn't play extended time if he had to.