The bigger change for the team is Hayward in for Bradley out. This will likely be an upgrade but I am a big Bradley fan. Bradley has durability issues but he is a very good player. Hayward is more durable and we shall see but likely a better all around player, but this is not some huge upgrade. I think Morris in for Amir Johnson may end up being more of a net gain for the team.
You're underestimating Hayward. Hayward is not "likely" a better all around player. He's a far better all around player.
Remember, I'm the one who posted an "Ode to Avery Bradley" about a year ago. I've consistently been his biggest fan on this board. But he's not in the same ballpark at Hayward. Bradley is consistently a 15/4/2 guy. He had a career month or two to start last season which skewed his stats for scoring and rebounding. But it's easy to see that was an aberration as he steadily declined throughout the year. Bradley is a top notch defender who provides some nice outside shooting. He's not a playmaker, a consistent rebounder, a guy who can create his own shot or a guy who gets to the FT line. He can only play one position - SG - because he doesn't pass well enough to play PG and he's too small to play SF. He also misses about 15 games a season due to injury.
Hayward, on the other hand, is significantly better. He's a 21/5/4 guy in a system that isn't as good as it could be for his talents. He shoots just as well from outside but can create his own shot. This is not to be underestimated. He's not the recipient of good passes the way Bradley is. He's making things happen on the court for the other guys. He rebounds a bit better and is a better passer. He gets to the line more often as well. He can play 3 positions at 6'8" (though he's best as a SF) and he consistently plays more than 70 games a year. He's a plus defender even if he's not as good as Bradley.
The advanced stats bear this out. Hayward's VORP is about 4 times what Bradley's is. Plus/Minus, Win Shares, W/48 - you name it and Hayward has far and away the better metrics. They're not even in the same ballpark.
Now what's funny is I had a similar position about Bradley vs. Jimmy Butler. But the difference in that discussion was the 2 1st round picks that everyone wanted to send along with Bradley to get Jimmy B. I said that was too much given Bradley's production. Now that we know those picks turned out to be Irving and Tatum, I think most everyone would agree with me at this point. But that's not the case here. Hayward didn't cost us anything besides the cap space that cost us Bradley and KO. That's a heck of an upgrade in my book and far more than Morris for Amir.