When the Nats completed the series win over their budding rivals from Baltimore last weekend, things were looking up. They’d won two in a row (and three of four), stalwart starter Livan Hernandez appeared to have returned to last year’s All Star form, and Alfonso Soriano was proving why Jim Bowden coveted him so badly. The team seemed to have turned a corner on their poor start. But Momentum, she is a fickle lady….