Marlins manager Ozzie Guillen said Tuesday that the club plans to monitor Josh Johnson's workload during the season. "He will dictate for us what to do," said Guillen. "What I want him to do is have confidence in us to make sure we know. So he can come to us and say, 'Listen, I need a day.' Can I miss a start? I don't want him to go out there and be a hero and then we don't use him for the next 20 days. I'd rather lose him for a day, two or three days, than lose him for 21 days. He's got to dictate." Johnson was limited to just nine starts last season due to right shoulder inflammation, but he is throwing without any issues in early Marlins' camp. He offers ace-potential if healthy.