Draft ranking vs Player ranking

Why are the draft rankings slightly different from the player rankings in the UDK?

If by draft rankings you mean current ADP, that’s just the average of where guys are currently being drafted. That’s not necessarily going to line up perfectly with player rankings because there’s a lot of variance in drafts. People can be higher on certain guys than someone else, hometown team guys, maybe you took 2 WRs first and need a RB (even though a WR might be ranked higher) or vice versa.

I’m actually not talking about ADP. On the main site, draft rankings is one of the major buttons at the top. I’m wondering why that is different than the udk player rankings.