There would be 252 different teams possible.
First, we need to find the total number of teams.
That would be: 10 x 9 x 8 x 7 x 6 = 30240
Then, divide that amount by the ways that you can mix up the 5 players on a team. That is: 5 x 4 x 3 x 2 x 1 = 120
The final answer is: 30240 / 120 = 252