If McMinnville officials decide not to embark on a multi-million dollar renovation project at the Civic Center, a tax decrease could be in store.That was the opinion expressed by city Finance Committee chair Everett Brock during a recent meeting.“If we don’t spend the money on doing projects like this,” said Brock of Civic Center renovation, “then we don’t need the money. Let’s lower the tax rate and work at it that way. The only reason to have that money is to run the city.