From a Dak Prescott fan: No.
Dak is who he is. He is a middle-tier franchise quarterback, but I have reservations as to whether he can ever be elite. Hopefully I am wrong. What Dak does best is lead, manage a game, make big throws when they need to be made, and complement the talent around him. He also comes through in the clutch.
However, the OP is asking if the Cowboys can build an offense around him. I say the teams that can do that are the ones that have QB's like Drew Brees, Tom Brady, Aaron Rodgers, and Ben Roesthlisberger.
We're kidding ourselves if we put Dak in that category. And that's unfair to Dak, too. Maybe someday he will be on par with those guys.
The Cowboys can win the Super Bowl with Prescott, but they have to build their offense (and defense) accordingly. Scoff if you want, but if Eli Manning, Joe Flacco, Trent Dilfer, and Brad Johnson can win Super Bowls, and QB's like Cam Newton, Rex Grossman, Stan Humphries, and Chris Chandler can get there, Dak certainly can.