If the premise is we lose Irving too, we will lose more games because Larken will be playing more. But Stevens isn't going to sit Horford, Morris, Baynes, and Smart and that core with Jaylen and Jayson are going to win a bunch of games. As someone mentioned earlier in the thread, Stevens isn't going to coach to lose so the whole tanking discussion is irrelevant. It wouldn't happen. We would lose more games but we wouldn't tank.
That team isn't going to win a bunch of games. It is quite bad on the whole, so I really don't see why the team wouldn't give more burn for Theis, Nader, Semi, and Yabu.
First, I have seen people, possibly even you, argue that even without Hayward, this team is better than last year's team. If we lose Kyrie suddenly we become a team with a horrible core that can't win games with players like Smart, Rozier, Brown, Tatum, Horford, Baynes and Morris?
Second, with Kyrie out all that will happen is Rozier's minutes will increase and we will see a bit more Larken and Nader. Not a lot more of Larken and Nader but more. Stevens isn't going to suddenly change his big man rotation because he lost a PG.
Third, Stevens isn't going to coach to lose. Its just not happening.
So we would lose more games if Kyrie gets hurt, but we won't be tanking.