Dan Campbell is using his first practice as interim head coach to send a message to the Miami Dolphins players: It's time to get tougher.
Campbell pulled the team together in practice, then split the squad into offense and defense for an Oklahoma Drill on Wednesday, per NFL Media's Jeff Darlington.
The Oklahoma Drill is a gauntlet involving one blocker, one tackler and one ball-carrier going full-speed in a confined space. Although it has been used for generations, it has come under controversy in the modern concussion awareness era.
"This is a drill that really is [meant] to help you define a mindset of being very tough, physical, even athletic," NFL Media analyst Solomon Wilcots explained when the Bengals ran it during their 2013 training camp.