Unless you are taking over a veteran team with and All-Star or two in a core that has a playoff pedigree, history shows that it’s tough sledding to be a rookie head coach in the NBA.
We know that Jeff Hornacek had a magical season in 2013-14 as a rookie coach of a Suns team that did not have any All-Stars, but that kind of flashbang success is quite rare. And in his case, the honeymoon was short-lived.
Looking around the league this year, you can see that much of any team’s success has to do with the players on their roster.