I'd say he performed about as well as expected of a kid who had only one power-5 conference basketball offer out of high school.
We were his only one, right? I may be way off here. It's happened before.
Could you point out the "huge portions of multiple seasons" where LeBron "coasted," please?
I wouldn't mind some numbers to prove his coasting, because, honestly, I don't believe you. I do believe you are talking out of your ass.