And Piasecki, 28, was delighted to be selected for the role – her first appearance at a world championships since racing as a junior in Mombasa, Kenya, in 2007.
"I'm really happy and I couldn't ask for any more than to be named captain of such a strong team," she said.
"In 2007 as a junior at world cross I was really happy to be there and everything happens all at once and you let it happen, whereas now I approach this year's event in a more professional manner and I want to do my utmost to finish as well as I can and put my mark on the event."
After a five-year absence from cross country, Piasecki enjoyed a resurgent season on the grass this year.
It culminated in an individual 10th place finish and a team silver medal in December's Euro Cross in Tilburg, the Netherlands.
Now she's hoping she and her teammates can do the country proud with their performance in Denmark.
"The European Championships came around really quickly for me but now I want to make my mark on the World Cross," Piasecki said.
"As a team, I think we have the potential to do really well across the board.
"Everyone needs to go in and run their own race and if they do that, as team captain I'll be very happy.
"At the Euros we had a really good turnout across the board from the team and hopefully everyone can do themselves and the country proud in Denmark."