In an Insider piece, Mel Kiper re-graded the 2013 draft. The San Francisco 49ers fared well in Kiper's re-evaluation. Immediately after the draft, Kiper assigned a 'B' to the 49ers. Now that the season is over, Kiper stuck with his original grade.Here are some of Kiper's thoughts: It's tough to add impact to one of the deepest rosters in the league, but the Niners did, and we could see some dividends going forward. (Eric) Reid was a success story -- he stepped in at free safety and acquitted himself well.