Okay I had to look this up. They're not that similar. Joel had a 53% TS (true shooting percentage, adds value to threes so it's more accurate than FG%) his senior season, the lowest of his career. Caleb is at 48% this year. All of Joel's seasons were higher than any of Caleb's seasons, especially the latter's ghastly 41.7% as a freshman.
Joel was a little worse on twos as a senior than Caleb, but much better on threes and free throws. Separately, Joel also had 1.3 less turnovers per game despite the same usage. I do remember thinking he forced too many tough runners that year, but he was a lot better than Caleb's been.
And I said this in an earlier comment, but that was a much tougher offensive team to work with. No one had a TS above 56% in the top 6 guys except Kenny Williams with 61% on low usage, who randomly shot well from three for the only time in his career (was sub 30% as a senior and 34% in four years). Compare to Love who has Bacot, Davis, Nance, and Dunn at 59%+. He should be sharing the ball a lot more.