Five days ago, the Cowboys held a three-man Gong Show at quarterback. On Sunday, the Cowboys declared a winner.
Adding a fourth quarterback became critical for the Cowboys, given that Romo will have his throws limited in training camp following offseason surgery to remove a cyst from his back.
Tanney, who played college football at Division III Monmouth, gained notice after posting a YouTube video of trick shots. He was signed by the Chiefs last year, but he was placed on injured reserve in late August.