Historical Draft Efficiency: An Introduction - Danny Tuccitto
The basic idea is that you use PFR's career approximate value (AV) metric* (which weighs more valuable seasons more heavily) to find the average career values of players taken at each draft slot, and then have a computer find the logarithmic curve that best fits the data.
Wrong year for big Chargers spending - Michael Gehlken (paywall)
The numbers are out on Danny Woodhead, and like the others, they provide a dose of reality.
PFF's 2009 First Round Re-draft - Khaled Elsayed
Notes: The Chargers saw English as a long-term replacement to the fading force that was Shawne Merriman. He wasn’t. Remarkably still with the team, he plummeted down the Chargers’ depth chart and has struggled to get playing time. Even when he has been on the field he’s failed to produce and must go down as a wasted pick. Re-Draft: It may be a little high for him, but if you’re desperate for pass rush then Paul Kruger is the best guy to fit in their 3-4 scheme.
2013 NFL Mock Draft 3.0 - NFL - Don Banks
The Chargers would be fortunate to address their need at offensive tackle with Johnson, because he's the third of the three elite prospects at that position in this round, and may not last until No. 11. A choice between starting King Dunlap or Johnson at left tackle is really no choice at all. Ask the Eagles about this one.