I'm not a big fan of Stevens. His short comings, regarding offensive strategies, have been well documented on this forum.
Irving has been an unmitigated disaster for this team, this year, on multiple levels. Irving understood that when he was in Cleveland with Lebron, he couldn't publicly throw team mates under the bus and play hero ball. Unfortunately, this year's team had no one, including Stevens, who had the gravitas and influence, to reign in Irving.
Hopefully, Stevens learns from this year's debacle. I would be willing to give Stevens another year. I have limited confidence that Irving will learn from this disaster, simply b/c he has failed to be accountable for his part in the teams' failure.