Quarterback coach Jim Zorn said offensive coordinator Bill Muir and not head coach Todd Haley will call the plays in Friday nightâ€™s preseason opener against Tampa Bay at Arrowhead Stadium. â€Bill is calling the plays so heâ€™ll be in the press box,â€ Zorn said after Wednesday nightâ€™s practice. â€I can tell you that. Iâ€™m sure he will take some suggestions.â€ Zorn didnâ€™t indicate whether the play-calling arrangement was permanent. Zorn also said all three quarterbacks, including starter Matt Cassel, would play against the Buccaneers.