This is a very good article. I really based most of my reasearch on this, breaking each position into A/B/C/D categories, based on where various fault lines appeared. I didn't refer to my 'chart' that much while actually drafting but knew pretty quickly which guy was 'higher' at two positions.
I also counted how many people at each position were in each category so I 'knew' that, based on last year's numbers, there were 4 'a' second basemen (w/ two 'superstars', or A+ guys) and 6 'a' shortstops and then 15 'a' outfielders. That's kind of how I got onto the idea to wait and get Berroa later than worrying about Nomar or Tejada. Similarly, I had 4 'A' 2B and 6 'B' so I felt I could've waited for a 'B' and been 'ok' had I not been able to snag Soriano, a potential A+ 2B (b/c Arod and Nomar were gone already...).
As far as draft tactics go, I was able to get this all into a 7 point spreadsheet that was pretty hard for the guys sitting by me to 'poach' which included each position, where the 'fault lines' between 'ABCD' players were, how many were at each position AND what an the bottom limit of an'A' shortstop was as far as numbers (0.328, 13, 100, 34) vs., for example, an 'A' starter (17-8, 2.34,0.95, 208) or an 'A' catcher (0.281,30, 101, 2).
Here's what I ended up with though...
Ramirez, Soriano, Sheffield, Sexson, Vazquez, Foulke, G. Anderson, C. Lee, Berroa, Zambrano, Livan Hernandez, D. Young, Santana, J. Estrada (cue 'Ponch' jokes...), Contreras, Donnelly, Ensberg, R. Hernandez, Worrell, A. Benitez, A. Rhodes, S. Burroughs, Lugo