I thought the point was obvious, sorry... Green Bay playoff game, where he brought the team back to the verge of a win, matching throw-for-throw with Rodgers on a big stage, shows he has the potential to be far more than a "game manager", as you say. Whether this coaching staff and receivers can help him reach his potential, remains to be seen.
I'll say again.....
UNTIL Dak Prescott learns to STRETCH the field (throw passes that travel more than 10-15 yards) defenses aren't going to be shaking in their NFL sanctioned socks. They will be like, "Hey! He don't throw downfield. Let's just hangout around the line of scrimmage and get a pick.
How 'bout this....
Show me any starting QB in the NFL who threw less 20+ yard passes than the 38 that Dak threw?
Now, I don't know his thinking in that ONE Green Bay play-off game, but if it was me, I'd be saying, "It's win or go home. So I have nothing to lose by trying to win." Different set of rules and circumstances in that game.
But maybe he needs to develop that mindset EVERY DOWN, EVERY DAY?
Dak Prescott is a bus driver. A game manager. If you don't believe that, then WHY are we running a ball control offense?
Why is he not playing like Ben Rothlisberger who threw 86 passes longer than 20 yards?