I don't know if I will still have spare time to gamble if I am busy being a sports journalist. These guys don't just give information out without checking it, and I bet they do a lot of hard work to provide news that will satisfy their listeners or readers.
One of the known sports journalists and analysts in American sports is Adrian Wojnarowski, and I believe he is busier conducting analysis about the sports that he covers, and I doubt he gambles his money on the team that looks like a winner for him. Having that fun job, I don't think I will gamble at all.