There has been a renewed interest by people for the Lions to take Russell Okung with the second overall pick even if they don't trade down.  There's 3 very important reasons that this shouldn't (and thankfully probably won't) happen:

1.  To draft an OL within the first 5 picks this player needs to be someone truly extraordinary, someone who'll be an immediate gamechanger (like a Willie Roaf, Johnathon Ogden, etc.)  and I just don't see Okung as being that kind of player.  Actually, there probably isn't an OL in the draft this year that is that good.  I see some nice, mid-1st round players available on the offensive line, just no game changers.  This draft is deep in defensive talent, I'd say particularly in the secondary and the DL, so why waste the second overall when you have nearly unlimited to choice among this talent?

2.  Since 1998 the Lions have taken 5 Offensive Lineman with-in the first 2 rounds of the draft, and more than a few others in the later rounds (Jonathon Scott a few years ago comes to mind) and have made a determined effort to build through the draft.  I just can't see them spending another high pick at this point.  Especially considering that, despite his fluke injury, Stafford didn't actually take that many sacks last season (Pro Football Reference says 24 total, which averages out to under 2 1/2 a game, not great, but not horrible either). 

3.  Lead worst defense every season for the past 2-3 years or so, and no defenses that ranked in the top 15 since around 1995.