Former Arsenal striker Smith said: "I've never known a situation like it in England. It's incredible when you see the anti-Benitez banners.
"Roman Abramovich must be doubting his decision."
"In terms of how they handled the Clattenburg situation I had some sympathy for them because they had to do what they did, but it's just been handled so badly.
"Then you get rid of Di Matteo and get Benitez in. It's just been calamity after calamity at the moment."