Cutler left the show early, but was asked about Smith's departure. The Bears have a team meeting scheduled at Halas Hall for 11 a.m.
"I think it's gonna be a sad day at Halas Hall," Cutler said. "[I have a] lot of respect for the guy. He's made friends with a lot of the players. He's a players' coach. I've been very, very lucky in my seven years to have two great coaches who gave a lot of respect to the players and listened to them."
The Bears officially announced the firing of Smith just after 11 a.m. on Monday. First-year general manager Phil Emery will meet the media at 10 a.m. on Tuesday.
"I've been around Phil and got to know him. He means business," Cutler said on his show. "He wants to win now and not later. I'm sure he's got a plan in place and I'm sure it's a good one."
The Bears' offensive woes this year and in seasons past likely played a big role in the decision to fire Smith. Cutler apologized to the fans on Monday.
"Sorry offensively, we couldn't do better for you," Cutler said. "I blame a lot of this on the offense and our inability to perform week in and week out. Defensively, they've been carrying us for a while.