I don't really think the pick and roll part of it is the problem, tons of offenses start with that action. The problem is that's the entirety of the offense. Either that or an outdated high-low between two bigs.
The big problem is the other three guys. They aren't moving, creating space, and are rarely cutting. When they are, it's often some weird action where the 4 goes to the block (thus bringing another post defender down low).
The other problem is that Carr dribbles way too much. He should get into the action and start moving the ball around. We would be a much better team if he dribbled 30% less. In his defense, no one is moving or cutting, so there aren't many better options to pass.
Our offense sucks.