There’s an old saying that states, “A boat is a hole in the water that you try to fill up with money.” But in Pittsburgh’s case, that hole isn’t in the water, it’s beneath it. And instead of being a boat, it’s the North Shore Connector tunnel. Last week, Gov. Ed Rendell called the North Shore Connector “a tragic mistake.” And for the most part, we have to agree. And because the Port Authority is already having trouble meeting its basic operating costs, adding large infrastructure additions and trying to build new ridership probably isn’t the best way to save money.