More does not necessarily mean better. I would not want to see any one person lead their own chatroom all day or even for a few hours. It would exhaust that person and can cause overtrading. The heightened required focus of trading for say 1 hour is similar to working 4 hours at a conventional job in my opinion. It's draining.
I like the current structure of how the mods have broken out the time slots. Andrew/Brian have mainly traded the open, Norm and Thor continuing trading later in the day using different strategies, Aiman, John, and Jarad jump in as well, with Peter and Mike towards the end of the day with Dr.Katz calming our psyche. However there may be value in seeing how each individual handles trading near the open, and perhaps could have a 'mod lead day' for that now and then.