https://www.mlb.com/news/cody-bellinger-interesting-free-agent-case
This is one of several analyses that look behind the numbers. You can statscout all you want, but it doesn't remotely tell the whole story, especially for unique hitting talents. Again, he made plate approach changes that explain in large part the reduction in exit velocity and hard hit from previous years. From the link:
“He’ll sacrifice some power to put the ball in play,” a scout told Sahadev Sharma of the Athletic recently. “I buy that that’s behind some of the average to lesser exit velocities.”
A key point not to be lost here is that Bellinger made far more contact in 2023 than in years past, cutting his strikeout rate from 27% to 16%. Only Ronald Acuña Jr. had a better improvement, and that carried with it some historical context. Since “hard-hit rate” is generally considered to be “of the balls you hit, how many were hit hard,” what if he’s just being penalized for that extra contact?
On softly hit balls, the quality of Bellinger’s contact was the second-best of his career, behind only 2019, and there was little to no overproduction or “good luck.”
On hard-hit balls, the quality of Bellinger’s contact was better than only his previous two down seasons, and there was considerable overproduction, which is likely where the hustle doubles and poor opposing defense comes in.