Can add the position argument to waivers()?

[meetblake]

I find that if the 'Waiver Type' league setting is "FAB w/ Continual rolling list tiebreak",
hence there is no Free Agents and all players are in waivers,
in this situation use waivers() may take a little bit of time,
so I think add the position argument to waivers() could be more efficiency.