Nate got his start in this world doing baseball forecasting (https://en.wikipedia.org/wiki/PECOTA), well before he delved into politics. Jay Boice definitely doing much of the heavy lifting these days, and deserves more personal recognition than he currently gets. But I wouldn't discount the amount of work Nate personally put in on the sports front.

I don't entirely disagree. We know from his public statements that he personally builds the political models. I think he is personally invested in the baseball modelling but we know it is a team effort and 538 is doing a lot. Nate is a media figure, he has to delegate.