Campaigns ALWAYS make changes after the convention.
Precisely! It's like the old joke, applied to Trump...
Donald Trump goes out on a fishing boat with Mike Pence. A gust of wind blows Trump's "Make America Great" hat onto the water. "Here I'll get it," says Trump, and gets out of the boat, walks on the water to get his hat, and returns to the boat.
Next day's headline: "Trump can't swim"