Idk, tough to be a bust when you play well enough to get paid.
Every year there seem to be high draft picks at the QB position that flat out flop. Baker Mayfield, Sam Darnold, Zach Wilson come to mind. Wilson, could still turn it around I guess. Young guy.
Dwayne Haskins (RIP), Mitch Trubisky, and so on.
Kinda hard to figure out how to classify Wentz's career. Sorta strange.