Vic didn't want low ceiling QB play. What he wanted as a QB who was mature enough to actually operate in a offensive structure. It does not matter how good of an arm you got if your OC can't trust you to run a play how it's practiced. Your teammates expect you to run a play how it was designed.Fangio was into Defense winning the game, not a QB. That was his entire HC strategy, hired Shurmer despite a 4-1 finish under a different OC in his first season as HC
Chose accordingly and also lost some games that way
He chose Low ceiling and that is what it is, nobody knows if lock would have won more games that year because he didn't play.
Defenses knew Teddy's limitations and the results show it, nobody was scared beyond 20 yards.
This is why multiple coaches all saw what Vic and co saw and that was Lock was brain dead as soon as the ball was hacked. This is also why no teammates are coming forward saying Lock should have starter over Teddy.