How does the game get the pitches pitcher throws?

[CalebDume13_MLBTS]

I'm curious on how the game decides the pitches the pitchers throw?
As a Rays fan most pitchers align with Fangraphs or Baseball Savant. But Taj Bradley has not received a cutter from the MLB The Show. Any ideas why not?

[VoteQuimby09_PSN]

I mean you can edit a player and give him a cutter if you wanted to