"A lot of things happened last year," he said. "I didn't quite make the adjustments as early as I should have. I may have gotten a little cocky, and thought I was just going to come in last year and do it again. That's one thing I learned. You never want to get comfortable here. You have to keep working every single day."
Johnson worked in the offseason to get stronger and change his approach at the plate. This spring he showed more patience.
"I'm trying to get my pitch," he said. "I still want to be aggressive, but I want to be really aggressive on the pitch I want to hit."
New Astros general manager Jeff Luhnow promised that the new Chris Johnson will more closely resemble the old one than the 2011 edition.
"The Chris Johnson we saw two years ago that got everybody excited, I think that's the guy we're going to see [this year]," Luhnow said. "Mentally, he's ready to be our everyday third baseman."
The Astros gave Johnson some confidence when they sent down Brett Wallace, last year's first baseman who was moved to third in the spring, to Triple-A Oklahoma City.
"It's really tough to see when guys get sent down, especially with Brett," Johnson said. "We went through a lot last year together. Brett's a really good player and he's going to be back up here. It's really nice for [the Astros] to say, 'You're our everyday third baseman." It's definitely a vote of confidence. They told me I'm starting on Friday. That's what I'm taking it as. From then on, I'm going to earn my playing time."
Johnson, 27, said he isn't the same person he was in 2010.
"I'm a lot smarter baseball player," he said. "Things last year really helped me out. It let me see that you can't take anything for granted. You go through those ups and downs. It helped me learn from that kind of stuff. If you don't start out well, you have to keep going."
Cardinals first baseman Lance Berkman, the former Astro, gave Johnson some sage advice.
"He told me last year. 'Don't get caught up in trying to prove people wrong,'" Johnson said.
Now Johnson knows that Berkman was right.