There are so many promotions out there and so many that people already tried but they did not work. It is hard to come up with a brand new idea to sell more tickets to a baseball game. They could have different days where people dress up or have days where everything is half off. Charity days might be a good hit now since that is really big. Technology is a big impact on selling tickets. Many people just buy their tickets online instead of calling or visiting the stadium. 

Naming rights are a financial transaction and form of advertising where a corporation or other entity purchases the right to name a facility or event, typically for a defined period of time. The Ohio State-Michigan game could be sponsored by many different companies. I think it should be a company that many northerners know of.

Twitter is becoming very popular in the sports marketing field. People can follow their favorite player and teams and get updates on everything that is happening. They can advertise for contests or promotions that can attract followers that may not have planned on attending the event originally. By doing this, many fans will re-tweet it and so the message gets out to more people than it would in a commercial. Twitter is also free, so the company can save money in the marketing department.