*puts on former beat writer hat*
It's easy to compare him to Keita because they will be used in a similar fashion — as a stretch-four and at times a small-ball five in Holtmann's system.
They are both long with over 7-foot wingspans and both were viewed as crazy high-upside prospects coming out of high school. Alonzo is more athletic but Keita was a bit more polished offensively coming out. Next steps for Alonzo are added more consistency to his outside and midrange jumper — the thing that made Keita so good — but right now Alonzo is probably a bit more capable of creating off the bounce because of his athleticism. This will be a big spring/summer for him on the Nike AAU circuit against other top prospects. Keita was a versatile defender and think Alonzo can be the same thanks to length and athleticism. Alonzo is listed at just 190 right now but I wouldn't worry too much about that. Keita was listed at like 185 or something coming out and put on damn near 40 pounds in college.