Speaking with The MMQB's Peter King, Kraft was asked how he thinks Garoppolo would do in Brady's stead.
"My gut feeling is the same as yours," Kraft said. "He is a very hard worker, a very fine young man, but until the bullets are flying and you're out there, no one knows. Think about how many of these first-round picks, even, don't make it. (Garoppolo was the team's second-round pick in 2014.) He works hard and he studies hard, though."
In the end, the owner hopes he doesn't have to find out.
"Deep down," Kraft said after a brief pause, "I would hope that's an academic question."
The latest Around The NFL Podcast welcomes Lindsay Rhodes to discuss the Patriots' response in the "Deflategate" saga and the latest names revealed on the "The Top 100 Players of 2015" countdown. Find more Around The NFL content on NFL NOW.