I've posted this here before, but here is the NFL draft profile of him,
https://www.nfl.com/prospects/dak-prescott/32005052-4528-5723-d1b2-96e92ebc1241, and there are weaknesses that stand out that are still weaknesses.
- Pocket poise has been compromised
- Hyper aware of pressure around him and lacks awareness to slide and find temporary shelter to make throw
- Concern over pressure too often trumps ability to get through progressions
- Must speed up the pace of his reads After eight years of starting in the NFL, he still suffers from all of these