The Astros lost Saturday's game, 6-4, but Tejada was certainly not the reason. He went 4-for-4 and scored Houston's first run of the night when he trotted home on Carlos Lee's home run in the fourth inning.
Cooper was pleased with his shortstop's approach at the plate and wanted to give Tejada another day batting second in the hope that his success would continue.
"Miggy swung the bat well last night," Cooper said. "He went and got a couple of pitches. [He] hit one to right-center, hit one back up the middle that was down. He had a good approach last night."
The idea behind moving Tejada up in the batting order was to help the struggling shortstop by getting him better pitches to hit by batting him in front of Lance Berkman.
Tejada's first hit of the game snapped an 0-for16 streak, and he kept on rolling all night.
"He seemed like he was a lot more relaxed," Cooper said. "He swung at better pitches, got better pitches to hit. A lot of times, hitters get themselves out because they'll be swinging at bad pitches.
"When you're hot, it doesn't matter what a guy is throwing you. You can go out of the zone and get pitches. But when you're struggling, you'll go out of the zone, and it's usually an out."
Before Saturday night, Tejada had only had one at-bat as a No. 2 since 2002, but Cooper's experiment was a hit, so he'll give it another day to see how works.
"Last night, the guys [in the dugout] were calling him a table-setter," Cooper said. "So we'll keep him in the table-setter role today and see how it goes."
Dave Fultz is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.