Blue Jays starter Ricky Romero is working with pitching coach Pete Walker to “iron out” some mechanical wrinkles in the hopes of improving his wayward command, Jays’ manager John Gibbons said Tuesday. “It’s not a major thing, but we think it’s something that will help him.” Romero typically throws across his body and Gibbons said he and Walker are working on tweaking his delivery to make it “more of a straight shot to home plate.” “Sometimes guys who throw across their body they have trouble commanding the ball,” Gibbons said. The 28-year-old left-hander, who was last season’s opening day starter, battled through a disastrous 2012 in which he posted the highest walk rate and worst ERA among major-league starters. He has continued to struggle this spring [LINK: ], giving up seven runs on 11 hits and seven walks through 8 2/3 innings. Gibbons said the changes to Romero’s mechanics are not dramatic. They would like to make his delivery more “free and easy,” while ensuring that his landing foot is directed towards the plate. “There’s a couple things he and (Walker) picked up that is a little different from what he’s done in the past. So they’re trying to iron those things out. ... It’s nothing major, but it’s something we think will help his command.” Romero is scheduled to pitch five innings in a minor-league game on Thursday, when the team travels south to Port Charlotte to take on the Tampa Bay Rays.