What does maker rackham point out to ender about the way his team function?

Mazer points out tactics and strategies that Ender never noticed before, and "for the first time, Ender had found a living mind he could admire."Ender and Mazer have one very important thing in common: they both try to understand the enemy, not just defeat him. When they discuss Mazer's battle during the Second Invasion, they try to figure out why the buggers did not stop him from shooting the queen's ship.