Karl-Anthony Towns arrived in Minnesota as the first overall pick of the 2015 Draft and he did exactly what you want in his rookie season by winning the Rookie of the Year award and being a fringe All-Star candidate. What you expect after is for steady improvement and again, this is exactly what the T-Wolves have received thus far.
KAT followed that rookie year with what is to date a career-high of 25.1 Points per Game with a balanced 12.3 Rebounds per Game, which were numbers that were similar in the two years that followed. In the last two seasons, he was chosen for the All-Star Game and was named a Third Team All-NBA selection in 2017/18. Towns has not had a lot of help and has only been able to will Minnesota to the playoffs once but this is a player who has averaged well over 20 Points and 11 Rebounds per Game with a PER of 25 is one hell of a basketball player. He is still with Minnesota as of this writing and he has only one more rung to climb. That won't be easy, but if he stays with Minnesota for a long period of time, it is possible.