collective diagnosis

The diagnosis cards (2) permit
an evaluation of the Offence-Defence ratio.

It is based on calculations from net crossings number.

individual efficiency

The individual efficiency evaluation cards (3x3 or 5x5) give one player's global efficiency  evaluation from a double entry table
(balls received - balls sent).

random series

Some learning exercises need random series of numbers or zone specifications to work correctly.
So, the learner is kept in the highest degree of incertitude and cannot anticipate too much..
This CLIP VB function gives an automatic generation of these series
for a comfortable use on the field.