Anthony, the president of a boutique accounting firm, wants…

Anthоny, the president оf а bоutique аccounting firm, wаnts to provide his staff with the opportunity to shift from a five-day work week to a four-day work week, but he does not know how to structure the week. He wants to collaborate with his staff to agree on a single solution. He wants the staff to be committed to these new arrangements and to be willing to implement them. What group decision-making technique could Anthony use to develop group agreement on the solution to this problem?