TAMPA, Fla. — Class was in session on Saturday morning.
The pupil: Javier Baez, the Detroit Tigers' new shortstop.
The teacher: Ramon Santiago, the Tigers infield coach.
The classroom: the edge of the infield dirt.
It was the morning before Baez’s first spring training game in a Tigers uniform. The Tigers were going through batting practice, and Baez and Santiago were standing on the infield, going through a lesson.