The Rams opened up Organized Team Activities to the media for the first time on Thursday. A few things to come out of the workout, which lasted around two hours: • The newest Ram, tackle Thomas Brown, is a mountain of a man. Signed as a college free agent out of Mississippi earlier this week, Brown is listed at 6-foot-10 and 385 pounds. But he is even bigger than that. "Actually, we weighed him in at 403," Rams coach Jeff Fisher said. "We had him in for a rookie tryout and he had some issues we had to clear up from a physical standpoint. But we put that behind us. We worked him out on both sides of the ball and decided that his best position would be offensive tackle. "He's a defensive lineman trying to convert to offense, but he got through practice.'' • The second season of the Fisher regime seems to be making progress. "I guess I can describe it to you this way: last year ar at this time, the entire team was hearing things for the first time,'' Fisher said. "This year, it's just the rookies going through that. For everybody else, it's the second go-around. "Our plan is to completely install everything ... from the first snap of a game at first-and-10 to last play of the game of the game with a Hail Mary pass and everything in between." Quarterback Sam Bradford had noticed a world of difference: "It just feels so much better knowing the details of this offense and actually having the ability to go over and help the young guys. When you're learning a system for the first time, it's really hard to go over ahd coach the young guys because you're still trying to figure everything out, too.''