Here is where you guys are getting it way wrong. Look at the video once again.
Dak should have realized it was #97, a stand up DE, trying to cover Dalton Schultz at the line of scrimmage. THAT should have been his first sign of who to throw to in case the DE follows Schultz, which he initially did 2-3 steps before running over to help cover CeeDee. There is no way a DE can keep up with Dalton Schultz.
Secondly, when the ball is hiked, Dak first looked at Dalton Schultz before looking over and throwing it to the much more covered CeeDee Lamb. The Lions knew this, hence why the stand up DE covering Schultz immediately rubbed off and ran over to help cover CeeDee over the middle. Dak badly failed to realize this both pre-snap and after the snap. Dalton Schultz was wide open running his fly/go route. Nobody was within 7-8 yards of Schultz!
The correct read and throw should have been to Dalton Schultz. It would have gone for a TD. Instead, Dak obviously pre-snap had his mind set on throwing it to CeeDee, hence Dak first looked at Dalton before looking over and throwing it to CeeDee. The Lions knew this since they had their DE immediately let Schultz run right past him wide open as the DE ran inside to help cover CeeDee. Dak got it wrong. The Lions guessed correctly. The only thing that helped Dak was he was able to squeeze that tight throw into CeeDee with 3 defenders around him, but the better and correct read was Dak should have noticed pre-snap how the DE was covering Dalton at the line of scrimmage, thus it should have made Dak realize Dalton was the one who would become wide open.
@khiladi Correct me if I'm wrong. Do you see what I'm seeing and what others are not seeing?