Hearing more about the mannequin yesterday, I think it was a master stroke IIRC that Greer played the 911 call while it was visible in the courtroom.
The jurors could see for themselves that AS didn't need a table to cut her down.
And I didn't hear all of Webb's closing today (my boss interrupted my surreptitious listening, THE NERVE!) but I didn't hear any rebuttal of that demonstrative at all.
I could figure out why Webb came out of the gate yelling and jumping from one topic to the next. Then I found out later about the mannequin (we didn't get to see the end of Greer's closing), and realized Webb had to follow that totally unexpected, profoundly impactful demonstrative. That was surely why seemed so all over the place - he had no time to recover.