"I still feel like I'm trying to do too much," Hannahan said. "I was trying to make too many big changes, and that's when the 0-for-10s come."
Indeed, he had no hits in 28 at-bats until Sunday, the longest hitless streak by an A's player since Mark Kotsay struggled through an 0-for-29 skid in 2006.
"I was trying to pull the ball too much," he said, "Now, I'm trying to make smaller adjustments, like seeing the strike zone better."
In the meantime, manager Bob Geren has called upon Cliff Pennington to handle the hot corner when Hannahan's at first base or out of the lineup. More time on the bench, though, won't change Hannahan's mind-set at the plate.
"I've been putting pressure on myself," he said. "But I've hit my whole career, so I know I can do it."
Acquired from Detroit last August to fill in for injured third baseman Eric Chavez, Hannahan has started 120 of the A's past 162 games at third base, giving him plenty of time to adjust to a starting role.
Yet Hannahan admitted that the adjustment process doesn't always stay at the ballpark.
"If I'm not doing so well, I try not to think about it after I leave, but it's tough in this game," he said. "They say baseball is 90 percent mental, so it's hard to leave all that at the ballpark sometimes."
No matter what the baseball experts say, though, Hannahan is sure of one thing.
"It's frustrating, but I know I'm capable of hitting," he said. "I just have to get back to being myself."