The phrase "a position to cast" is correct and usable in written English.
It can be used when referring to having the authority or ability to make a decision or influence an outcome.
Example: "As the team leader, I am in a position to cast my vote on the proposed changes to the project."
Alternatives: "an opportunity to decide" or "the authority to influence".
The FN leader said Farage was not in a position to cast aspersions on others.
Justice O'Connor was the focus of much attention during the argument today because she may be in a position to cast the deciding vote in this case.
Justices Sandra Day O'Connor and Anthony M. Kennedy, who are widely perceived as in a position to cast the swing votes, were obviously deeply interested in the case but did not tip their hands.
She was part of the 5-to-4 majority that struck down a Nebraska precursor of the federal law in 2000, so her successor, likely to be Judge Samuel A. Alito Jr., could be in a position to cast the deciding vote.
Signing up only takes a matter of seconds, and creating your BBC iD now means you will be in a position to cast your vote for the main Sports Personality of the Year award on Sunday, 20 December.
If Democrats' current three-seat advantage slips to a 50-50 balance, a Vice President Ryan would be in position to cast a tiebreaking vote.
Mark Pritchard may be in no position to cast stones, but the fact is that his challenge to Brown on Wednesday was a good one.
To activate Arch, a light guide was positioned to cast 180 mW/mm 532-nm light onto A1 surface, perpendiular to cortical layers.
The greater wonder, of course, is that Jackson is in a position to be cast in anything at all.
If he wasn't there in the first place, he wasn't in a position to be cast away.
An initial crowd estimated at around 100 protesters split into smaller groups once inside the building, with each subgroup seeking out the offices of specific senators, some of whom are positioned to cast critical swing votes on the legislation.
