Caydance poured herself a glass of white wine. It was a perfect time for a phone call. " While you were creating a playbook with variables, to my syllabus, I added medieval maps into which detours had been inserted -- and portable medieval manuscripts that could be attached to their belts while lords and ladies strolled in gardens," she said to Griff on the telephone. "At one of my favorite places, the Newberry Library in Chicago, there is a miniature 15th Century leatherbound Book of Hours. Probably made in Bruges, it was designed to hang upside-down from a belt, but when it was opened, the text was right-side up.

"In that same library, created with inserted pieces for each month, there is a 15th Century vade mecum -- "go with me" -- Almanac which could be read (in this case by a doctor), without removing it from his belt."

"Like the print and velcro playbook that attaches to the quarterback's arm," Griff responded. "...first worn by Tom Matte, a running back for the Colts, who unexpectedly played quarterback once upon a time when Johnny Unitas and the backup quarterback were injured. Wearing a wristband playbook designed by Coach Don Shula, Matte, who hadn't played quarterback since high school, led Baltimore to an upset victory over the Los Angeles Rams."