1. You're not giving current players enough credit. They aren't delicate flowers and this isn't the time for delicacy. If they feel slighted, then they can use it for motivation to work harder and get better.
2. I doubt CPJ was worried about hurting Chan's feelings when he came in and changed a bunch of stuff. When you're the new head coach, you come in and set the tone and instill your culture day 1. And part of that means letting your players know what is expected of them. Things *are* going to be different. They just are. CGC is bringing in a whole new philosophy of how to win football games. That doesn't mean CPJ's philosophy didn't work, but if Tech is going to be successful, the players have to buy in to the new system.
3. This is just branding, and most everyone does it to some degree, though CGC definitely seems to be big on it. If it annoys you, just try to tune it out because it isn't going anywhere.
I don't think CGC comes across like the ShamWow guy, maybe more like Billy Mays, God rest him.