>>> coaches, athletes and parents are at ut arlington for a closer look at treing concussions. darrell "moose" johnson spoke tonight, saying treatment for possible concussions has changed dramatically from when he was on the field. >> instead of how many fingers do i have up, get back in there. it's when in doubt, take him out, which is probably the best thing, especially when we are talking about young kids. >> that new attitude is trickling down to the high school and youth athleticth levels. >>> schools are out for spring break and arlington is hoping for a big boost. hotels, shopping centers and attractions are expecti