Expectations.
He was a freshman AA, and all conference freshman and sophomore years ...
But he didn't really improve. Tristan Wirfs came in and played the right side ... His play improved greatly and he came out as a junior.
When Jackson saw that, and saw that his draft grade was poor, he changed a lot. He went Vegan to get his body under control and got really disciplined.
But the expectation is that he was going to be a top ten pick as a junior ... so he's disappointed all the guys scouting him. Looks soft. Uninspired.
But he did a great job with his focus and body his senior year and really transformed it and played stronger and tougher.
There were covid complications ... 2020 season going into the 21 draft ... scouts didn't really get to see him "changed" ...
That's the only thing I can think.