1. You will always have to "add" yourself to the game, OOTP will not ship with you in it.
2. You can already play GM/Manager, so not sure what exactly you mean.
Or do you want to play as say Tony Larussa or Tommy Lasorda?
If so, then add yourself under the name of your choice. You can even import their tendencies/strategies if you wish. (This is also in the game now)
