It starts with filling the place in my opinion. Find ways for folks to get in and out more easily (More Uber options, etc). Super discounted seats for high-schools and youth leagues. Close out the upper deck if attendance is expected to be low. Much more creative thinking on pricing and packaging. I’ve been just a few times, but I recall the best seats (Gold Club?) are oversized, luxury, bright colored, expensive and, therefore, often empty—it’s a lose/lose (and a bad look). Maybe there’s a way to offer standby options for those seats until the ticket holders show, stay if they don’t. They should never go unoccupied. Lower deck seats in general should be thought of like first class seats on an airplane—never empty, and if unused, an upgrade or benefit to the customer you care most about.