I really enjoyed listening to this clip. Schiff does great radio in my opinion, but he should just try to minimize the crosstalk. Even though it's great radio (entertaining) it's not necessarily going to change anything, as has been noted on these message boards already.
I think a lot more came out of his interview with Dennis Kucinich (I think that was one of my favorite interviews done by anyone).
Still, I've found that the best way to move anyone towards your position is to start where you both have common ground (civil liberties and war when talking to socialists, and even neocons pay lip service to balanced budgets and shrinking government). After that, incrementally build from that foundation of mutual respect to understand each other's positions (and really pinpoint where the disagreement lies). I don't think Schiff is interested in doing all that.