I'm not sure about parallels but I am sure about one thing. Jalen's sophomore statistics compared to Kemba's are close if not better.
Kemba - 14.6 PPG, 2.1 ST, 5.1 AST, 4.3 RB, .43 2P%, .339 3P%, .767 FT%
Jalen - 14.4 PPG, 1.1 ST, 6.1 AST, 4.3 RB, .43 2P%, >.35 3P%, >.828 FT%
Very close actually. Not saying he's going to be Kemba, one of our all time greats, but don't discount him. And he did that with some of his best teammates sidelined with injuries and all the pressure on him to run the show almost alone. If we get a jump from Jalen in his Junior year like we did with Kemba we will be very happy. I'm not sure he has the front court horses to compete for a National Championship like Kemba did so I wouldn't sign him up for that either, but don't count him out.
I hope this is a parallel though!