No. 48 on defense, outside linebacker Kourtnei Brown, looks -- superficially at least -- a lot like Aldon Smith, who was wearing No. 48 at the beginning of last year's training camp. Both are tall with long legs and very long arms. Smith didn't jump out until full contact drills began in training camp, (and he later switched to No. 99). As of now, contact is forbidden in practice, and it's hard to say anything definitive about the young linemen and linebackers. But Brown certainly looks the part.
Read more here: http://blogs.sacbee.com/49ers/archives/2012/05/49ers-ota-notes-absences-give-clues-to-depth-chart.html#storylink=cpy
Brown has a much better chance now that Flemming was injured. Maybe he's a diamond in the rough.