Noooo
The problem even if someone's great is that Durham then ends the call, then misrepresents a caller and get his own digs in last. There's no right of reply at that point - so he'll twist something to make the caller sound like he didn't think it all through properly, and the masses will fall for it.
It's classic straw man argument tactics where you mislead the audience into believing the caller was making a certain point (when he wasn't), thus portraying him as an idiot.
For instance, he gets a City fan to explain why Delph is a good buy -
the City fan phones in and says for 8m he's a no brainer and could play plenty of games.
The City fan is then cut off and thanked, and Durham says, so... City fans only bought him because he was cheap. Is that a proper way to choose players? and just because you've got the money, is it ok to just buy them up as though money doesn't matter? - then adding, is that what City fans are like now? money to burn, and buy anything just because they can? Call in and explain how City think they can just buy for the sake of it!