Batum is about 4 or 5 OVR higher and is a better shooter. I just like Batum more than Matthews in the game. Courtney freaking Lee gets 22 minutes as 6th man - I'd be fine with Batum getting those minutes. I can easily move over to guard or PF to get Batum on the court more.
Another thing is that Batum got injured for 5 weeks. I actually took Victor Claver's starting spot (lol'd at those cutscenes) Batum has been back but his minutes have not been adjusted. He's the 4th best player on the team but gets the 7th most minutes.
If the game wasn't so scripted id walk over to coach's office and ask to give Batum more minutes. I know there was something like that in 2k13.