MESA, Ariz. -- Cubs pitcher Casey Coleman has retired his Twitter account.

"I couldn't keep up with it," he said Friday. "I've never done fantasy baseball or fantasy basketball. The only thing I can do is fantasy football because it's once a week."

Coleman was the only verified Cubs player who had a Twitter account, which he started in the offseason and had developed nearly 2,000 followers.

"I would get tons of people who would tag you and say, 'This guy is the only Cubs on Twitter so follow him,'" Coleman said. "I wanted to try it out. I'm not going to be a Terrell Owens or [Chad] Ochocinco."

Both of those pro football players are very active on Twitter. Not Coleman.

"I wanted to see what responses I would get," he said about why he started an account. "I would tweet, 'Fishing out here in Florida.' Now, I'm out in the field all day. I don't want to tweet about how a bullpen goes."

Hands-on Quade refuses to let mistakes ride

MESA, Ariz. -- Cubs manager Mike Quade addressed the team before Friday's stretch because he was unhappy with some of the mistakes made in Thursday's 6-5 loss to the Athletics.

"If we lose that game because [Sean Marshall] and [Kerry Wood] aren't sharp, OK, that's going to happen," Quade said of the game, in which the A's scored three runs in the bottom of the ninth against Marshall and took advantage of an error by Fernando Perez.

"But we make a little mistake and we missed a couple opportunities to add on," he said. "Little things like that -- particularly the defensive end -- are something you emphasize daily."

Perez and Reed Johnson are vying for the extra outfielder spot on the Cubs' bench, and Johnson hit a two-run homer on Thursday.

"One game is one game," Quade said. "All of us have made mistakes this spring, and I don't want to put the light on Perez because he struggled with that fly ball [which resulted in an error]. This is a team conversation for me and little mistakes along the way, and we're trying to clean them up as best you can."

Quade is very hands on. For example, he was in Phoenix on Tuesday for a split-squad game and heard about a mental mistake catcher Geovany Soto made in a play in the game in Mesa that day. Quade had Soto go over the play in hopes of avoiding the mistake again.

Most of the time, Quade addresses the problem immediately.

"If something happens in the fourth and I don't address it until after the game, what if it comes up in the seventh?" Quade said. "What [an idiot] I am. You try to get that stuff done as quick as I can."

Back spasms hurting Ojeda's roster chances

MESA, Ariz. -- Augie Ojeda cannot play because of back spasms, and Cubs manager Mike Quade acknowledged it's getting a little late for the infielder in camp.

"It's been longer than we thought," Quade said Friday of Ojeda's back problems. "I'm hoping he can get healthy and it doesn't morph into something that lasts for weeks and weeks."

Ojeda, a non-roster invitee vying for a spot on the Cubs' bench, has not played in one week, last getting playing time on March 11.

"It's not progressing as quickly as I would like," Ojeda said. "I have to take it day by day."

"He's a valuable guy," Quade said. "Whether he goes with us, whether he doesn't -- he's a nice guy to have in the middle of this thing. It's getting late in camp, and I don't think he's real close yet."

Darwin Barney, another option for the Cubs, has played well this spring and started at second base on Friday. Barney is batting .333.