How would you handle a freelance writer who handed in subpar work?

"It depends on how close we are to the deadline. If there's enough time for them to resubmit, then I'll edit and give them feedback. I'll have a talk with them to make sure they understand my expectations. I'll have them submit a few paragraphs as quickly as possible, to see if they're on the right track. If they are, then they can go ahead and finish writing the piece.

If there isn't enough time, then I'll have to quickly find another writer. If it's going to cost us more, I'm willing to take it because it's important to be able to consistently meet deadlines. If we can't afford it, then I'll make other arrangements.

All in all, I'd revisit the situation and see if there were any indicators about their potential lack of quality that I didn't see. If the freelancer is capable and shows potential, I'll work with him or her again and give them more chances to raise themselves to our level, but not in a deadline-critical situation."