Ok, so like Zidane and Pele, on two evenly matched GOOD teams they could be the deciding factor, but on two mediocre to poor teams they might not be able to be utilized effectively?

On the basketball point, this could be a very long conversation. For starters i've never been much of a basketball fan, and kinda resent the me attitude and singular superstar mentality. There are more and more foreign born players entering the NBA every year because of their solid fundamentals and team skills. I would argue though just because the other national teams are more team oriented and their success is based on solid team tactics, a single superstar player CAN still make a huge difference, their teams are just oriented toward good team play.

So I'll accept that in Soccer a singular player can make a big difference. Is it the same impact or less for Underwater Hockey? the team has to be able to utilize the player and still play solidly, but will their impact be more along the lines of raising the level of game of their teamates rather than super hero actions by himself?

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An aquifer is a water bearing layer of rock or soil. Aquifers are separated by impermeable layers of rock or clay called an aquitard. Aquitard, however may sound a bit offensive to some, and therefore we will be changing the name to Aquachallenge.