Not a great comparison.
Charlie Weis was a clown who lucked into one of the 2-3 GOATS in NFL QB history.
And once he didn't have the Pats defense to give him a lot of latitude in his schematics, and actually had to recruit his own players and coach them up, he blew chunks.
Ken is different. He's had to coach up a certifiable moron to NFL standards, (Cam Newton), but also try and contain a guy who never saw a crazy pass he didn't want to try to make (Josh Allen). He also has one thing that Weis never had: experience as a QB coach.
Not to say Ken is an automatic to be a success in college coaching, that's never a guarantee, no matter who you are. But it's not a comparison I would adopt.