To get any player in season mode, play one game then create a player and make him 6'11". Make him anything but a pitcher. Then make patience, range, arm strength, arm accuracy, and glove to "D" then hitting, contact, power, bunt, and speed to "A+". When you pick him up from free agency he should be rated "A" (the first couple times he may be rated "A-")but you can trade him for "A+" players.