No, you can’t, because everything is tied into having a single player tied in with diamond dynasty and the other modes. And btw, unlike Xbox players, I’ve been playing RTTS going all the way back to the PS2 era. I buy the game EVERY SINGLE SEASON and I play multiple different careers through the RTTS mode depending if I feel like pitching or hitting, etc. It looks like a lot of players do that. And even if I did start over using a pitcher as the single player, you still are forced into diamond dynasty with the integration of your player into that mode.
And btw, I contacted Sony Support to ask for a refund. That’s how pissed off I am about this game. But of course, “Sorry, you’ve already played the game so you can’t get a refund.” You mean, a game that is disconnected from the servers 50% of the time? So I have to keep a game that doesn’t work and also has the only mode I’ve cared about for years gutted in the game. GREAT customer service, Sony. I guess I can just go play on Xbox. I mean, you guys don’t create any good games. You just buy other companies that do the hard work. But hey, at least I can get a refund if a game is completely unplayable two days after launch.