As commissioner, I'd take a look at these on a case-by-case basis, with the default position being the one listed by NFL.com (the most official source available) but the ultimate ruling to be made by me.
If I know Webb is expected to play 90+% of his snaps at QB, I'm allowing him to be starting at QB, not WR. Same would go for Colston way back when. He's starting as a WR, so I'd allow him to be played as a WR, not a TE.
Someone like Kordell, back in the day, was starting at QB and as such would be playable as a QB (with the added bonus of getting some WR opportunities thrown in).
The situation could change weekly, but I'm not interested in giving one team some form of loophole to exploit because of what amounts to a clerical error on the part of our fantasy football service.
I love the commishes throwing their weight, glad I'm not in some of these leagues with this guy.I love how you say I, I'd, I'm...its not about you, its about the league. You cant change rules just cuz you dont like them. Webb was a WR before this week, if you can get him part of the bonus. Yahoo notices it dual position, who r u to not to?
At what point did I change the rules? We have our own bylaws and it's not in our best interest to allow the flaws and decisions of MFL, Yahoo, or ESPN to dictate what we do. Yes, I rule with an iron fist

when it comes to preventing owners from EXPLOITING loopholes.Perhaps I should have clarified, however. If a player is legitimately playing at two positions, he remains an option at both positions. Colston NEVER played TE for the Saints his rookie season (if I recall correctly) and allowing someone to start him at TE because our chosen fantasy site incorrectly had him listed as one would have been a gross injustice and would likely have tainted that season.
What the heck is a commissioner for if he isn't there to step in when people attempt to take advantage of a loophole? Yea, it's true: guys who try to lawyer the rules and take advantage of loopholes or gaps in our rules aren't as happy in my league as they might be in others. But we also have less of that going on and an incredibly robust and active league.
*Edited to add: I'm the guy who picked up Webb, and I don't think I'd allow him to start at WR this week -
but I'd have to take a closer look at the situation to be certain.