Could I get some of you officials to rule on a play

[RamTime]

If taken by just the words, anytime Quincy Carter throws a pass, it's IG, as it doesn't have a reasonable chance of being caught.

Thanks I just spit coffee all over myself.

I have a feeling this is going to be one of those questions that are not well defined like I.G. however I honestly do not understand what an illegeal pick is other then it has something to do with receivers crossing close enough to one another to where it its underlying purpose is to either make the DB's colide or some how fool them so that two or more defenders will cover the same receiver leaving another receiver wide open. Any help on this? also I have not found it in the rule book so if you can give the #-#-# I would appreciate it.