http://www.sf49ers.com/team/roster_detail.php?PRKey=43§ion=TE Roster
"Justin Smiley #65
Height: 6-3, Weight: 311
CAREER: Outstanding drive blocker with superb power and incredible quickness for position…Has started every game for the last two seasons…Very emotional player, commands respect from teammates and opponents…Shows quickness and agility coming out of stance…Very effective getting out and moving pile on traps and sweeps…Uses sudden burst to reach or cut off linebackers at second level…Shows above average lateral agility, especially when working in space…Delivers good pop and explosion with hands…Has very good reactions and keen field vision, showing instinctive reactions in blocking."
http://www.footballoutsiders.com/stats/ol.php
According to Football Outsiders, Runs to the right of Smiley were 4.6 YPC, ranking best on the team. This stat ranked him as the 9th best Right Guard in the NFL. It gets a little better because the 49ers ran to this hole alot (16%)... and so teams expected this and he still was effective.
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Hadnot by comparison ranked #24 with 3.84 YPC, with 9% through his hole. This looks to be a signifigant upgrade. If you can change those third-and-3's to third-and-1's... it's going to help.