Diamondbacks stop A's 4-3 to complete sweep.

Byline: Joe Stiglich

PHOENIX _ Count the number of ways the A's doomed themselves over the weekend.

Late-inning bullpen breakdown?

Check.

Subpar starting pitching?

You bet.

Careless defense?

They had that covered.

It's no wonder the momentum that the A's carried into the weekend evaporated in the Arizona heat.

A 4-3 defeat to the Diamondbacks on Sunday completed a three-game sweep for the home team at Chase Field. It also proved the A's are still trying to figure out how to meld all phases of their game together on a consistent basis.

A's manager Bob Melvin was in no chatting mood after the game.

"Not a good series," he said. "A bad series. …