Staubach did the same spin move, but I think before he did that he was able to read the defense better, so that he knew where he could go with the ball after he got turned back around.
If Dak's going to keep doing that, he needs to learn to do what Roger did. Not sure if he can do that, but even after 47 games an NFL quarterback is still learning. Brees never had a completion percentage over 70% until he'd played 90 games. Pretty sure he worked on his accuracy all that time. Dak's well over 60% now, with a few more completions a game he'll be close to 70%.
The question is, can he get better? Most think he can't, but as I said, he'll probably be here at least a couple more years, we'll find out, won't we?