move because there was a risk in getting injured if you came back for another year and could thus harm your draft stock rather than improve it. Now days, the money difference between lottery pick and late 1st/2nd rounder is so great that being a projected late 1st/2nd rounder is going to garner a lot of NIL money from many college programs, enough to offset most any potential risk of injury. This then provides more appeal to return to college and try to improve your draft stock to a lottery level player and thus give yourself the potential to make even more money the following year if you can continue developing at the college level.