During a season, go to
"Settings" and turn salary caps off. Then, go to
"Manage Roster", and make or edit a player. You can
put all their stats to 100.
Random team selection:
Select exhibition mode.
Press L to choose a random visiting or R to get a
random home team at the team selection screen.
Skip coin toss:
Repeatedly press A +
Start + Z (about five to six times) at the coin toss
screen to advance to the kickoff.