Press A+B+C+Start at the setup screen. The Renegade and EA Sports teams will be selectable.
Equally distribute all of the points for a created player's stats (81 for all positions except goaltender, 89 for goalies with 3 points left over) and the game will randomly assign exceptional values to the created player's stats. All positions except goaltenders will have a 99 overall rating, with all stats 85 or higher -- 95s and 97s are not uncommon. Note: aggressiveness is always assigned at random -- changing the user-modifiable stats does not seem to impact the aggressiveness stat.