Rewatching Den of Thieves. Raises the question why some actors make and some don't.

Pablo Schreiber is good in the movie. He portrays a convincing blend of professional controlled aggression. Very watchable. I don't know if he could carry a movie as a leading man and yet, O'Shea Jackson is going to get to in Den of Thieves Part two alongside Gerard Butler. O'Shea Jackson is such a bland actor. I don't understand why he gets rolls outside of who his father is. But O'Shea gets a part 2 and a more prominent role? And Pablo is where nowadays? Is there another explanation outside of nepotism, or am I just a bad judge of acting?