I imagine we all have things we wish JM had done but didn't, even in the first trial. I wish he'd used a lot more visuals, especially a map showing JA's murder-trip from Yreka down to Redding to rent the car ... then a big arrow showing Salt Lake City was straight east iirc but she went all the way down the CA coast to Monterrey to get gas cans, then down to Pasadena for no believable reason at all, ... except that Mesa is straight east.
Things I see stick much longer than things I only hear. I wish the jurors had many more visuals to refer to than they do. For instance, I bet TA's phone records from Jan-June 2008, if highlighted to show incoming calls from JA, would clearly prove she was the pursuer. I'd love to see JA's bank statements from her time in Mesa too, or even her job and housing history there, but iirc none were allowed in.