According to Bob Gretz, there are six top Offensive Line picks, Joe Thomas (Off Tackle), Tony Ugoh (Off Tackle), Joe Staley (Off Tackle), Levi Brown, (Off Tackle), Justin Blaylock (Off Line), and Ben Grubbs (Off Guard).
According to Gretz, Defensive Tackle is high on the priority list for the Chiefs, so I doubt that any of these will be around for the Second round Picks.
I have an idea, let's hire Sandler (Waterboy) as QB, let him drop kick folks all over the field, we might make the playoffs, then fire the offensive coordinator for his lousy play calling, and then get another defensive player in next years draft. As long as we have a coach to fire, we can work this plan into next century. (grin)