On Thursday, the Lerners took in their first game as the official to-be-owners of the Nats, and it was a stinker. The Nats’ poor play has left them in last place, and has local scribes taking a long view toward the Lerner/ Kasten team building a contender. The Nats started the week with a quick two game series in New York with the first-place Mets. And they had to do it while desperately shorthanded and…