Look, I've said all along I didn't think Lee should start. Obviously, Brad thinks he should and I'm good with that.
I wouldn't worry about one game. The simple fact is that this team has enough effective bigs to sub in for someone who isn't having a good game. Lee and Zeller didn't perform well, so the Cs brought in Sully, Amir and Jerebko who all performed well. That's why this team is projected to have a winning record - the depth is unbelievable.
I'm in favor of leaving Amir to run more with IT on that second unit. Those two look like they were made for each other. If that means Lee starts and Amir finishes, I'm fine with that too.