1. Lamar Valley with kids is not a good use of time.
2. Upper Falls of the Yellowstone is nice but nothing compared to the lower. Skippable.
3. Don't for one minute assume that you'll get to all spots. Choose 2-3 highlights per day and prioritize those. You have no time scheduled for animal jams, random overlooks, and the constant stopping at unexpected wonders. Don't push yourself to see everything, rather take it easy and enjoy the park as it comes.
4. Schwabacher Landing is non-negotiable, as I've been saying for years now.
5. Don't forget to bring stuff for cold weather no matter what time of the year it is.
6. The northern parts of the Tetons are the best spot for grizzlies. You'll see plenty of people out searching, stop and exchange intelligence. It may well pay off.