Honestly, I don't follow predictions of the said sports gambling experts but I do read their analysis about the game. It's really helpful to see who are missing in the game and who might play that could be a big impact to the game.
After that, I do my own analysis and I'd be happy to predict the results of the game on my own rather than relying on someone else who thinks they are good at predicting the game. Reality is, there's no assurance with their own predictions because the game cannot be controlled by anyone unless there are circumstances where they need to lose because of an important reason. i.e. Draft picks lottery (tanking)