the concurrent creation of a normal red cell whenever a mutant green cell is generated.

1) the concurrent creation of a normal red cell whenever a mutant green cell is generated =anytime a green mutant cell is created, a red normal cell will be created at the same time?

2) the ball = the mutations?

Context:

"Another key feature is the concurrent creation of a normal red cell whenever a mutant green cell is generated. In effect, we can compare every player's movement with or without the ball -- the mutations," he said. "If they are doing the same thing, we know they are not attacking. If they are doing different things, we know something is wrong, and should focus our attention to tackle the particular player, the cell type, to prevent a tumor from advancing down the field."

More:

http://www.sciencedaily.com/releases/2011/07/110707121926.htm