If you look at several sets of Individual Defensive Player (IDP) rankings compiled by fantasy "experts," one of the first things that leaps out at you is the significant variation from one list to the next, much more so than you'll usually find in rankings for offensive players. This can reflect differences in the scoring used as a default in generating the rankings (which hammers home the all-important IDP draft rule of knowing the scoring in your league and how it affects player values), a difference in philosophy from ranker to ranker, or even the personal preferences or biases of a particular ranker. For example, I hate Quintin Mikell, as he has been conspiring to destroy my IDP teams since I started playing in this format. I'm on to you Quintin, and you will not succeed. Rankings also change a great deal as they're updated and injuries, depth chart changes, and schematic changes or tweaks wreak havoc on individual defensive player values. Nowhere was this more evident than in this truncated NFL offseason, as the rankings that were cranked out before the lockout ended have been eviscerated by the innumerable player moves that have occurred since the NFL light bulb finally came on. With the help of FantasySharks' resident IDP mastermind, the honored and esteemed James Elvins (figured it might be nice to involve one person who had an idea what he was talking about), let's take a deeper look at a few players whose IDP values seem to be up for debate, whether it's due to a change in role, health or just the fact that fantasy football pundits can be a contrary bunch. With that, let's start the IDP Showdown! Paul Posluszny, LB, Jacksonville James Elvins: You know what, I'm actually liking Posluszny to challenge for No. 2 overall IDP this year (Carolina's Jon Beason at No. 1 for me -- that defensive line is gosh awful. I know some people don't like him for moving away from the Buffalo Bills value wise, but I don't think his value is affected in this change. I think it's improved as you have two franchises at different stages of their rebuilding. Buffalo have been consistently working on their defensive line for the past three years. Look at their draft picks. Jacksonville has only just come into the light in that respect. They will be starting two rookie defensive tackles. Their big offseason free eagent acquisition on the line (Ron Edwards from Kansas City) has already gone on Injured Reserve. Their former first-round defensive end (Derrick Harvey) has ...