"Cant close out double digit leads"
Week 1: 25-9
Week 4: 28-3
Week 7: 38-6
Week 9: 37-3
Week 11: 34-24
Week 12: 20-10
Those are the double digit wins that have happened just this season. That is more than 1 by the way which means that your counting is very very off.
Rush offense is currently number 2 in football. You left out that they are the 6th best pass defense in football. You are going to be top 10 in both categories usually and the road to the Super Bowl involves a lot more passing teams. In fact I think you are not going to see a great rushing team until the Super Bowl. Again the idea that you have be great at everything to win a Super Bowl is silly. Every single Super Bowl team of the past decade had weaknesses and usually big ones. "Complete" teams do not really exist and if they were would excel at nothing and I have yet to see one of those teams either exist or win.