Since you're a new fan, you may not know the history. Jerry Sloan hired Corbin. Corbin was named HC when Sloan quit.
Harris was clearly better than Mo, on both ends of the floor, and healthy too.
Replacing Bell, Howard, CJ with Foye and Marvin was a good try, but ultimately sucked ***. You didn't expect the defense to suck *** with Foye and Mo being the mighty front line? Sad to say that Roger Braille was 10x the defender Foye was, and almost as good at chucking threes too.
There was clear and ongoing improvement to Alfense. Apparently the history has to be repeated over and over to deaf ears. Ty tried to go away from Alfense at the start of the season. It had mixed results (worse than last season's start) and then Mo got hurt, so Ty had to start from scratch, again. So he tried to bring along the young guys even quicker, with an explicit focus on baseline and HORNS plays for Kanter-Favors, weak side triangle PnR with Hayward and other pnr, and getting Burks to resemble an player who could run within an NBA offense.
Ty needs to learn to motivate on the road and adjust his late game substitution patterns. The 2nd will be very easy for him to do, but the first relies a lot on personnel. Let's get an all star & a well rounded team and see what Ty can do.