Slidable card device for alternating player positions during a game

A slidable card device for assisting coaches in alternating player positions during each inning of a ball game, the device comprising:

• a. a flat, substantially rectangular sheath with a front, a back, two closed sides, and two opened ends;
• and
• b. means for alternating player positions during each inning of a ball game, said alternating means comprising:
• (i) a roster list of player names imprinted in a column format on the front of the sheath;
• (ii) at least one viewing window, in the front of the sheath, adjacent the roster list;
• and
• (iii) an insert card slidably housed within the sheath, said card having preprinted columns that list every player position to be fielded in the ball game and the columns vary in the order of positions listed, wherein the columns appear, one at a time, through the window, as the card is withdrawn incrementally each inning, to display a different player position each inning aligned with a player's name on the roster list.

A selection device comprising:

• a. a flat sheath having a front, a back, two closed sides, and two opened ends;
• b. a roster list box, on the front of the sheath, for imprinting player names in the form of a column, with one player name per row;
• and
• c. means for displaying a different fielding position for each player name during each inning of a ball game, said displaying means comprising:
• (i) an insert card slidable housed within the sheath, said card having preprinted columns that list every player position to be fielded in the ball game, and the columns vary in the order of positions listed, said card also having a series of faces with different matrices, wherein each matrix is comprised of preprinted columns that differ in the number of player positions listed in the columns of the remaining matrices;
• and
• (ii) at least one viewing window in the front of the sheath adapted in size and shape to align with the columns of a selected matrix, one at a time, as the card is withdrawn from the sheath through one of the opened ends, to display different player positioning each inning adjacent the player names.