The PBA Tour had a title sponsor in 2020. It announced Thursday that it has a new one in 2021. We don’t know the financial details, but even if they are exactly the same, the 2021 deal represents an important upgrade. The reason is that the 2021 title sponsor is Guaranteed Rate, one of the largest retail mortgage lenders in the country, while the 2020 title sponsor was Go Bowling! The difference? The former is not of the bowling industry, the latter is of the bowling...